diff --git a/src/components/modals/MusicCommentsDialog.spec.ts b/src/components/modals/MusicCommentsDialog.spec.ts
new file mode 100644
index 000000000..b3574aa56
--- /dev/null
+++ b/src/components/modals/MusicCommentsDialog.spec.ts
@@ -0,0 +1,301 @@
+import { afterEach, beforeEach, describe, expect, it, vi } from "vitest";
+import { flushPromises, mount, type VueWrapper } from "@vue/test-utils";
+import { createPinia, setActivePinia } from "pinia";
+import { createI18n } from "vue-i18n";
+import { nextTick } from "vue";
+import { useStatusStore } from "@/stores/status";
+import MusicCommentsDialog from "./MusicCommentsDialog.vue";
+
+const mockTrack = {
+  id: "track-1",
+  title: "测试曲目",
+  source: "netease",
+  duration: 200,
+  artist: "测试歌手",
+  artists: [{ id: "artist-1", name: "测试歌手" }],
+};
+
+const mockCommentData = {
+  list: [
+    {
+      id: "comment-1",
+      userName: "张三",
+      text: "这是一条精彩的歌曲评论",
+      time: 1700000000000,
+      likedCount: 88,
+      reply: [
+        {
+          id: "reply-1",
+          userName: "李四",
+          text: "赞同，前奏很抓耳",
+          time: 1700001000000,
+        },
+      ],
+    },
+  ],
+  total: 1,
+  page: 1,
+  limit: 20,
+};
+
+describe("MusicCommentsDialog 评论复制功能", () => {
+  let wrapper: VueWrapper;
+  let writeTextMock: ReturnType<typeof vi.fn>;
+
+  beforeEach(() => {
+    setActivePinia(createPinia());
+    writeTextMock = vi.fn().mockResolvedValue(undefined);
+    Object.defineProperty(navigator, "clipboard", {
+      value: {
+        writeText: writeTextMock,
+      },
+      configurable: true,
+      writable: true,
+    });
+
+    window.api = {
+      ...window.api,
+      comments: {
+        sources: vi.fn().mockResolvedValue([
+          {
+            id: "netease",
+            name: "网易云音乐",
+            kind: "builtin",
+            platform: "netease",
+            tabs: ["hot", "new"],
+          },
+        ]),
+        get: vi.fn().mockResolvedValue({
+          ok: true,
+          data: mockCommentData,
+        }),
+      },
+    } as any;
+  });
+
+  afterEach(() => {
+    wrapper?.unmount();
+    vi.clearAllMocks();
+  });
+
+  /**
+   * 挂载评论弹窗并等待首屏数据加载完成
+   * @returns 包装后的测试组件实例
+   */
+  const mountDialog = async (): Promise<VueWrapper> => {
+    const status = useStatusStore();
+    status.commentsTrack = mockTrack as any;
+    status.commentsOpen = false;
+
+    const i18n = createI18n({
+      legacy: false,
+      locale: "zh-CN",
+      missingWarn: false,
+      fallbackWarn: false,
+      messages: {
+        "zh-CN": {
+          common: {
+            copied: "已复制",
+            copyFailed: "复制失败",
+            prev: "上一页",
+            next: "下一页",
+          },
+          comments: {
+            name: "歌曲评论",
+            title: "「{name}」的评论",
+            hot: "热门评论",
+            new: "最新评论",
+            copy: "复制",
+            copyComment: "复制评论",
+            copyReply: "复制回复",
+            location: "来自{location}",
+            page: "第 {page} / {total} 页",
+          },
+        },
+      },
+    });
+
+    wrapper = mount(MusicCommentsDialog, {
+      global: {
+        plugins: [i18n],
+        stubs: {
+          SDialog: {
+            props: ["open", "title"],
+            template: '<div v-if="open" data-testid="dialog"><slot /></div>',
+          },
+          STabs: {
+            props: ["modelValue", "tabs"],
+            template: '<div data-testid="tabs" />',
+          },
+          SSelect: {
+            props: ["modelValue", "options"],
+            template: '<select data-testid="source-select" />',
+          },
+          SCard: {
+            props: ["size", "radius"],
+            template: '<div v-bind="$attrs" data-testid="comment-card"><slot /></div>',
+          },
+          SButton: {
+            props: ["title", "disabled", "variant", "size", "circle", "loading"],
+            template:
+              '<button :title="title" :disabled="disabled" v-bind="$attrs"><slot name="icon" /><slot /></button>',
+          },
+          SImg: {
+            props: ["src"],
+            template: '<img :src="src" />',
+          },
+          SLoading: {
+            template: "<div />",
+          },
+          SContextMenu: {
+            props: ["items"],
+            emits: ["select"],
+            template: `
+              <div data-testid="context-menu-wrapper">
+                <slot />
+                <div data-testid="context-menu-popover">
+                  <button
+                    v-for="item in items"
+                    :key="item.key"
+                    :data-testid="'menu-' + item.key"
+                    @click="$emit('select', item.key)"
+                  >
+                    {{ item.label }}
+                  </button>
+                </div>
+              </div>
+            `,
+          },
+          IconLucideThumbsUp: true,
+          IconLucideCopy: true,
+          IconLucideRefreshCw: true,
+          IconLucideMessageCircleOff: true,
+        },
+      },
+    });
+
+    status.commentsOpen = true;
+    await nextTick();
+    await flushPromises();
+    await nextTick();
+    return wrapper;
+  };
+
+  it("评论正文与回复文本具备 select-text 类以支持用户文本选择", async () => {
+    await mountDialog();
+
+    const commentTextEl = wrapper.find("p.select-text");
+    expect(commentTextEl.exists()).toBe(true);
+    expect(commentTextEl.text()).toBe("这是一条精彩的歌曲评论");
+
+    const replyContainer = wrapper.find("[data-reply-id='reply-1']");
+    expect(replyContainer.exists()).toBe(true);
+    const replySpans = replyContainer.findAll("span.select-text");
+    expect(replySpans.length).toBe(2);
+    expect(replySpans[0].text()).toContain("李四");
+    expect(replySpans[1].text()).toBe("赞同，前奏很抓耳");
+  });
+
+  it("点击主评论复制按钮成功复制主评论文本且具备 aria-label", async () => {
+    await mountDialog();
+
+    const copyBtn = wrapper.find("button[title='复制评论']");
+    expect(copyBtn.exists()).toBe(true);
+    expect(copyBtn.attributes("aria-label")).toBe("复制评论");
+    await copyBtn.trigger("click");
+
+    expect(writeTextMock).toHaveBeenCalledWith("这是一条精彩的歌曲评论");
+  });
+
+  it("点击回复复制按钮成功复制回复文本且具备 aria-label", async () => {
+    await mountDialog();
+
+    const replyCopyBtn = wrapper.find("button[title='复制回复']");
+    expect(replyCopyBtn.exists()).toBe(true);
+    expect(replyCopyBtn.attributes("aria-label")).toBe("复制回复");
+    await replyCopyBtn.trigger("click");
+
+    expect(writeTextMock).toHaveBeenCalledWith("赞同，前奏很抓耳");
+  });
+
+  it("右键主评论触发上下文菜单提供复制评论选项并可执行复制", async () => {
+    await mountDialog();
+
+    const card = wrapper.find("[data-comment-id='comment-1']");
+    expect(card.exists()).toBe(true);
+
+    await card.trigger("contextmenu");
+    await nextTick();
+
+    const copyCommentMenuBtn = wrapper.find("[data-testid='menu-copyComment']");
+    expect(copyCommentMenuBtn.exists()).toBe(true);
+    expect(copyCommentMenuBtn.text()).toBe("复制评论");
+
+    await copyCommentMenuBtn.trigger("click");
+    expect(writeTextMock).toHaveBeenCalledWith("这是一条精彩的歌曲评论");
+  });
+
+  it("右键回复触发上下文菜单提供复制回复和复制主评论选项", async () => {
+    await mountDialog();
+
+    const replyEl = wrapper.find("[data-reply-id='reply-1']");
+    expect(replyEl.exists()).toBe(true);
+
+    await replyEl.trigger("contextmenu");
+    await nextTick();
+
+    const copyReplyMenuBtn = wrapper.find("[data-testid='menu-copyReply']");
+    expect(copyReplyMenuBtn.exists()).toBe(true);
+    expect(copyReplyMenuBtn.text()).toBe("复制回复");
+
+    const copyCommentMenuBtn = wrapper.find("[data-testid='menu-copyComment']");
+    expect(copyCommentMenuBtn.exists()).toBe(true);
+
+    await copyReplyMenuBtn.trigger("click");
+    expect(writeTextMock).toHaveBeenCalledWith("赞同，前奏很抓耳");
+  });
+
+  it("存在文本选区时右键优先展示复制选中文本并保留原样内容", async () => {
+    await mountDialog();
+
+    const originalGetSelection = window.getSelection;
+    window.getSelection = vi.fn().mockReturnValue({
+      toString: () => "  精彩的歌曲片段  ",
+    } as any);
+
+    try {
+      const card = wrapper.find("[data-comment-id='comment-1']");
+      await card.trigger("contextmenu");
+      await nextTick();
+
+      const copySelectionBtn = wrapper.find("[data-testid='menu-copySelection']");
+      expect(copySelectionBtn.exists()).toBe(true);
+      expect(copySelectionBtn.text()).toBe("复制");
+
+      await copySelectionBtn.trigger("click");
+      expect(writeTextMock).toHaveBeenCalledWith("  精彩的歌曲片段  ");
+    } finally {
+      window.getSelection = originalGetSelection;
+    }
+  });
+
+  it("纯空白文本选区不提供复制选区选项", async () => {
+    await mountDialog();
+
+    const originalGetSelection = window.getSelection;
+    window.getSelection = vi.fn().mockReturnValue({
+      toString: () => "   \n\t  ",
+    } as any);
+
+    try {
+      const card = wrapper.find("[data-comment-id='comment-1']");
+      await card.trigger("contextmenu");
+      await nextTick();
+
+      expect(wrapper.find("[data-testid='menu-copySelection']").exists()).toBe(false);
+      expect(wrapper.find("[data-testid='menu-copyComment']").exists()).toBe(true);
+    } finally {
+      window.getSelection = originalGetSelection;
+    }
+  });
+});
diff --git a/src/components/modals/MusicCommentsDialog.vue b/src/components/modals/MusicCommentsDialog.vue
index 37edc101b..5ff4d8fa0 100644
--- a/src/components/modals/MusicCommentsDialog.vue
+++ b/src/components/modals/MusicCommentsDialog.vue
@@ -1,12 +1,16 @@
 <script setup lang="ts">
 import type { CommentSource, CommentTab, MusicCommentPage } from "@shared/types/comment";
+import type { DropdownMenuItem } from "@/components/ui/SDropdownMenu.vue";
 import { useStatusStore } from "@/stores/status";
 import { toast } from "@/composables/useToast";
+import { useCopyText } from "@/composables/useCopyText";
 import { formatDate } from "@/utils/time";
 import IconLucideThumbsUp from "~icons/lucide/thumbs-up";
+import IconLucideCopy from "~icons/lucide/copy";
 
 const { t } = useI18n();
 const status = useStatusStore();
+const { copy } = useCopyText();
 
 const sources = shallowRef<CommentSource[]>([]);
 const sourceId = ref("");
@@ -148,6 +152,84 @@ watch(activeTab, async (next, prev) => {
   await nextTick();
   listScrollRef.value?.scrollTo({ top: 0 });
 });
+
+const selectedText = ref("");
+const contextCommentText = ref("");
+const contextReplyText = ref("");
+
+const contextMenuItems = computed<DropdownMenuItem[]>(() => {
+  const items: DropdownMenuItem[] = [];
+  if (selectedText.value) {
+    items.push({
+      key: "copySelection",
+      label: t("comments.copy"),
+      icon: markRaw(IconLucideCopy),
+    });
+  }
+  if (contextReplyText.value) {
+    items.push({
+      key: "copyReply",
+      label: t("comments.copyReply"),
+      icon: markRaw(IconLucideCopy),
+      separator: items.length > 0,
+    });
+  }
+  if (contextCommentText.value) {
+    items.push({
+      key: "copyComment",
+      label: t("comments.copyComment"),
+      icon: markRaw(IconLucideCopy),
+      separator: items.length > 0 && !contextReplyText.value,
+    });
+  }
+  return items;
+});
+
+/**
+ * 仅当右键命中评论、回复或文本选区时放行上下文菜单
+ * @param event - 鼠标右键事件
+ */
+const onCommentsContextMenu = (event: MouseEvent): void => {
+  const rawSelection = window.getSelection()?.toString() ?? "";
+  selectedText.value = rawSelection.trim().length > 0 ? rawSelection : "";
+
+  const target = event.target as HTMLElement | null;
+  const replyEl = target?.closest<HTMLElement>("[data-reply-id]");
+  const replyId = replyEl?.dataset.replyId;
+
+  const commentEl = target?.closest<HTMLElement>("[data-comment-id]");
+  const commentId = commentEl?.dataset.commentId;
+
+  const targetComment = commentId ? page.value.list.find((c) => c.id === commentId) : null;
+  const targetReply =
+    replyId && targetComment?.reply ? targetComment.reply.find((r) => r.id === replyId) : null;
+
+  contextCommentText.value = targetComment?.text ?? "";
+  contextReplyText.value = targetReply?.text ?? "";
+
+  if (!selectedText.value && !contextCommentText.value && !contextReplyText.value) {
+    event.preventDefault();
+    event.stopPropagation();
+  }
+};
+
+/**
+ * 执行评论右键菜单选中项
+ * @param key - 选中的菜单项标识
+ */
+const onContextMenuSelect = async (key: string): Promise<void> => {
+  switch (key) {
+    case "copySelection":
+      await copy(selectedText.value);
+      break;
+    case "copyReply":
+      await copy(contextReplyText.value);
+      break;
+    case "copyComment":
+      await copy(contextCommentText.value);
+      break;
+  }
+};
 </script>
 
 <template>
@@ -216,67 +298,110 @@ watch(activeTab, async (next, prev) => {
         </div>
       </div>
       <div v-else ref="listScrollRef" class="min-h-0 flex-1 overflow-y-auto pr-1">
-        <div class="space-y-1.5">
-          <SCard v-for="item in page.list" :key="item.id" size="small" radius="lg">
-            <div class="flex gap-3">
-              <SImg
-                v-if="item.avatar"
-                :src="item.avatar"
-                class="h-9 w-9 shrink-0 rounded-full ring-1 ring-black/10 dark:ring-white/10"
-                alt=""
-              />
-              <div v-else class="h-9 w-9 shrink-0 rounded-full bg-on-surface/8" />
-              <div class="min-w-0 flex-1">
-                <div class="flex items-start justify-between gap-3">
-                  <div class="min-w-0">
-                    <div class="truncate text-sm font-medium">{{ item.userName }}</div>
-                    <div class="mt-0.5 flex gap-2 text-xs text-on-surface-variant">
-                      <span v-if="item.time">{{ formatDate(item.time) }}</span>
-                      <span v-if="item.location">
-                        {{ t("comments.location", { location: item.location }) }}
-                      </span>
+        <SContextMenu :items="contextMenuItems" @select="onContextMenuSelect">
+          <div class="space-y-1.5" @contextmenu.capture="onCommentsContextMenu">
+            <SCard
+              v-for="item in page.list"
+              :key="item.id"
+              size="small"
+              radius="lg"
+              class="group relative"
+              :data-comment-id="item.id"
+            >
+              <div class="flex gap-3">
+                <SImg
+                  v-if="item.avatar"
+                  :src="item.avatar"
+                  class="h-9 w-9 shrink-0 rounded-full ring-1 ring-black/10 dark:ring-white/10"
+                  alt=""
+                />
+                <div v-else class="h-9 w-9 shrink-0 rounded-full bg-on-surface/8" />
+                <div class="min-w-0 flex-1">
+                  <div class="flex items-start justify-between gap-3">
+                    <div class="min-w-0">
+                      <div class="truncate text-sm font-medium select-text">
+                        {{ item.userName }}
+                      </div>
+                      <div class="mt-0.5 flex gap-2 text-xs text-on-surface-variant">
+                        <span v-if="item.time">{{ formatDate(item.time) }}</span>
+                        <span v-if="item.location">
+                          {{ t("comments.location", { location: item.location }) }}
+                        </span>
+                      </div>
+                    </div>
+                    <div class="flex shrink-0 items-center gap-1.5">
+                      <div
+                        v-if="item.likedCount != null"
+                        class="flex items-center gap-1 text-xs tabular-nums text-on-surface-variant"
+                      >
+                        <IconLucideThumbsUp class="size-3.5" />
+                        <span>{{ item.likedCount }}</span>
+                      </div>
+                      <SButton
+                        variant="ghost"
+                        circle
+                        size="tiny"
+                        class="opacity-0 group-hover:opacity-100 focus-visible:opacity-100 transition-opacity"
+                        :title="t('comments.copyComment')"
+                        :aria-label="t('comments.copyComment')"
+                        @click.stop="copy(item.text)"
+                      >
+                        <template #icon><IconLucideCopy class="size-3.5" /></template>
+                      </SButton>
                     </div>
                   </div>
+                  <p class="mt-2 whitespace-pre-wrap break-words text-sm leading-6 select-text">
+                    {{ item.text }}
+                  </p>
                   <div
-                    v-if="item.likedCount != null"
-                    class="flex shrink-0 items-center gap-1 text-xs tabular-nums text-on-surface-variant"
+                    v-if="item.images?.length"
+                    class="mt-2 grid w-fit max-w-full grid-cols-3 gap-1.5"
                   >
-                    <IconLucideThumbsUp class="size-3.5" />
-                    <span>{{ item.likedCount }}</span>
+                    <SImg
+                      v-for="(image, index) in item.images"
+                      :key="image"
+                      :src="image"
+                      :alt="`${item.userName} ${index + 1}`"
+                      :class="[
+                        'aspect-square max-w-full rounded-lg ring-1 ring-black/10 dark:ring-white/10',
+                        item.images.length === 1 ? 'w-48' : 'w-24',
+                      ]"
+                    />
                   </div>
-                </div>
-                <p class="mt-2 whitespace-pre-wrap break-words text-sm leading-6">
-                  {{ item.text }}
-                </p>
-                <div
-                  v-if="item.images?.length"
-                  class="mt-2 grid w-fit max-w-full grid-cols-3 gap-1.5"
-                >
-                  <SImg
-                    v-for="(image, index) in item.images"
-                    :key="image"
-                    :src="image"
-                    :alt="`${item.userName} ${index + 1}`"
-                    :class="[
-                      'aspect-square max-w-full rounded-lg ring-1 ring-black/10 dark:ring-white/10',
-                      item.images.length === 1 ? 'w-48' : 'w-24',
-                    ]"
-                  />
-                </div>
-                <div v-if="item.reply?.length" class="mt-2 rounded-md bg-on-surface/5 px-3 py-2">
                   <div
-                    v-for="reply in item.reply"
-                    :key="reply.id"
-                    class="text-xs leading-5 text-on-surface-variant"
+                    v-if="item.reply?.length"
+                    class="mt-2 rounded-md bg-on-surface/5 px-3 py-2 space-y-1"
                   >
-                    <span class="font-medium text-on-surface">{{ reply.userName }}：</span>
-                    {{ reply.text }}
+                    <div
+                      v-for="reply in item.reply"
+                      :key="reply.id"
+                      class="group/reply flex items-start justify-between gap-2 text-xs leading-5 text-on-surface-variant"
+                      :data-reply-id="reply.id"
+                    >
+                      <div class="min-w-0 flex-1">
+                        <span class="font-medium text-on-surface select-text">
+                          {{ reply.userName }}：
+                        </span>
+                        <span class="select-text">{{ reply.text }}</span>
+                      </div>
+                      <SButton
+                        variant="ghost"
+                        circle
+                        size="tiny"
+                        class="opacity-0 group-hover/reply:opacity-100 focus-visible:opacity-100 transition-opacity shrink-0 -my-0.5"
+                        :title="t('comments.copyReply')"
+                        :aria-label="t('comments.copyReply')"
+                        @click.stop="copy(reply.text)"
+                      >
+                        <template #icon><IconLucideCopy class="size-3" /></template>
+                      </SButton>
+                    </div>
                   </div>
                 </div>
               </div>
-            </div>
-          </SCard>
-        </div>
+            </SCard>
+          </div>
+        </SContextMenu>
       </div>
 
       <div
diff --git a/src/i18n/locales/en-US.json b/src/i18n/locales/en-US.json
index 5da28c18f..1f49aea24 100644
--- a/src/i18n/locales/en-US.json
+++ b/src/i18n/locales/en-US.json
@@ -137,7 +137,10 @@
     "empty": "No comments yet",
     "noSource": "No comment source available",
     "location": "From {location}",
-    "page": "Page {page} / {total}"
+    "page": "Page {page} / {total}",
+    "copy": "Copy",
+    "copyComment": "Copy Comment",
+    "copyReply": "Copy Reply"
   },
   "equalizer": {
     "title": "Equalizer",
diff --git a/src/i18n/locales/zh-CN.json b/src/i18n/locales/zh-CN.json
index ab69e6023..e98eb143c 100644
--- a/src/i18n/locales/zh-CN.json
+++ b/src/i18n/locales/zh-CN.json
@@ -137,7 +137,10 @@
     "empty": "暂无评论",
     "noSource": "没有可用的评论来源",
     "location": "来自{location}",
-    "page": "第 {page} / {total} 页"
+    "page": "第 {page} / {total} 页",
+    "copy": "复制",
+    "copyComment": "复制评论",
+    "copyReply": "复制回复"
   },
   "equalizer": {
     "title": "均衡器",