diff --git a/global.d.ts b/global.d.ts
index 7b7d3e8aa4..5ac91e7b6a 100644
--- a/global.d.ts
+++ b/global.d.ts
@@ -34,6 +34,7 @@ declare global {
 declare module 'react' {
   export interface AriaAttributes {
     'data-hide-print'?: boolean
+    'data-event'?: string
     'data-testid'?: string
   }
 }
diff --git a/src/app/notes/[id]/page.tsx b/src/app/notes/[id]/page.tsx
index a9c284cacd..6c005ac529 100644
--- a/src/app/notes/[id]/page.tsx
+++ b/src/app/notes/[id]/page.tsx
@@ -20,6 +20,7 @@ import { NoteHideIfSecret } from '../../../components/widgets/note/NoteHideIfSec
 import { NoteMetaBar } from '../../../components/widgets/note/NoteMetaBar'
 import {
   IndentArticleContainer,
+  MarkdownSelection,
   NoteHeaderDate,
   NoteHeaderMetaInfoSetting,
   NoteMarkdown,
@@ -90,7 +91,9 @@ const NotePage = memo(function Notepage() {
             <ReadIndicatorForMobile />
             <NoteMarkdownImageRecordProvider>
               <BanCopyWrapper>
-                <NoteMarkdown />
+                <MarkdownSelection>
+                  <NoteMarkdown />
+                </MarkdownSelection>
               </BanCopyWrapper>
             </NoteMarkdownImageRecordProvider>
 
diff --git a/src/app/notes/[id]/pageExtra.tsx b/src/app/notes/[id]/pageExtra.tsx
index 5750112735..5bbfc1ade6 100644
--- a/src/app/notes/[id]/pageExtra.tsx
+++ b/src/app/notes/[id]/pageExtra.tsx
@@ -14,6 +14,7 @@ import { useSetHeaderMetaInfo } from '~/components/layout/header/hooks'
 import { FloatPopover } from '~/components/ui/float-popover'
 import { Markdown } from '~/components/ui/markdown'
 import { GoToAdminEditingButton } from '~/components/widgets/shared/GoToAdminEditingButton'
+import { WithArticleSelectionAction } from '~/components/widgets/shared/WithArticleSelectionAction'
 import { parseDate } from '~/lib/datetime'
 import { noopArr } from '~/lib/noop'
 import { MarkdownImageRecordProvider } from '~/providers/article/MarkdownImageRecordProvider'
@@ -21,6 +22,16 @@ import { useCurrentNoteDataSelector } from '~/providers/note/CurrentNoteDataProv
 
 import styles from './page.module.css'
 
+export const MarkdownSelection: Component = (props) => {
+  const id = useCurrentNoteDataSelector((data) => data?.data?.id)!
+  const title = useCurrentNoteDataSelector((data) => data?.data?.title)!
+  return (
+    <WithArticleSelectionAction refId={id} title={title}>
+      {props.children}
+    </WithArticleSelectionAction>
+  )
+}
+
 export const NoteTitle = () => {
   const title = useCurrentNoteDataSelector((data) => data?.data.title)
   const id = useCurrentNoteDataSelector((data) => data?.data.id)
diff --git a/src/app/posts/(post-detail)/[category]/[slug]/page.tsx b/src/app/posts/(post-detail)/[category]/[slug]/page.tsx
index 5178887794..2c4aca50b9 100644
--- a/src/app/posts/(post-detail)/[category]/[slug]/page.tsx
+++ b/src/app/posts/(post-detail)/[category]/[slug]/page.tsx
@@ -21,6 +21,7 @@ import { WrappedElementProvider } from '~/providers/shared/WrappedElementProvide
 import Loading from './loading'
 import {
   HeaderMetaInfoSetting,
+  MarkdownSelection,
   PostMarkdown,
   PostMarkdownImageRecordProvider,
   PostMetaBarInternal,
@@ -61,7 +62,9 @@ const PostPage = () => {
         <WrappedElementProvider>
           <ReadIndicatorForMobile />
           <PostMarkdownImageRecordProvider>
-            <PostMarkdown />
+            <MarkdownSelection>
+              <PostMarkdown />
+            </MarkdownSelection>
           </PostMarkdownImageRecordProvider>
 
           <LayoutRightSidePortal>
diff --git a/src/app/posts/(post-detail)/[category]/[slug]/pageExtra.tsx b/src/app/posts/(post-detail)/[category]/[slug]/pageExtra.tsx
index 9fc74dbc3a..638aaf8ad5 100644
--- a/src/app/posts/(post-detail)/[category]/[slug]/pageExtra.tsx
+++ b/src/app/posts/(post-detail)/[category]/[slug]/pageExtra.tsx
@@ -7,10 +7,20 @@ import type { PropsWithChildren } from 'react'
 import { useSetHeaderMetaInfo } from '~/components/layout/header/hooks'
 import { Markdown } from '~/components/ui/markdown'
 import { PostMetaBar } from '~/components/widgets/post/PostMetaBar'
+import { WithArticleSelectionAction } from '~/components/widgets/shared/WithArticleSelectionAction'
 import { noopArr } from '~/lib/noop'
 import { MarkdownImageRecordProvider } from '~/providers/article/MarkdownImageRecordProvider'
 import { useCurrentPostDataSelector } from '~/providers/post/CurrentPostDataProvider'
 
+export const MarkdownSelection: Component = (props) => {
+  const id = useCurrentPostDataSelector((data) => data?.id)!
+  const title = useCurrentPostDataSelector((data) => data?.title)!
+  return (
+    <WithArticleSelectionAction refId={id} title={title}>
+      {props.children}
+    </WithArticleSelectionAction>
+  )
+}
 export const PostMarkdown = () => {
   const text = useCurrentPostDataSelector((data) => data?.text)
   if (!text) return null
diff --git a/src/components/widgets/comment/CommentBox/Root.tsx b/src/components/widgets/comment/CommentBox/Root.tsx
index 22723456b9..2be53d60e5 100644
--- a/src/components/widgets/comment/CommentBox/Root.tsx
+++ b/src/components/widgets/comment/CommentBox/Root.tsx
@@ -17,7 +17,7 @@ import { CommentBoxSignedOutContent } from './SignedOutContent'
 import { SwitchCommentMode } from './SwitchCommentMode'
 
 export const CommentBoxRoot: Component<CommentBaseProps> = (props) => {
-  const { refId, className, afterSubmit } = props
+  const { refId, className, afterSubmit, initialValue } = props
 
   const mode = useCommentMode()
 
@@ -27,7 +27,11 @@ export const CommentBoxRoot: Component<CommentBaseProps> = (props) => {
   }, [isLogged])
 
   return (
-    <CommentBoxProvider refId={refId}>
+    <CommentBoxProvider
+      refId={refId}
+      afterSubmit={afterSubmit}
+      initialValue={initialValue}
+    >
       <div
         className={clsxm('group relative w-full min-w-0', className)}
         data-hide-print
diff --git a/src/components/widgets/comment/CommentBox/UniversalTextArea.tsx b/src/components/widgets/comment/CommentBox/UniversalTextArea.tsx
index 099ae35409..9a6b3e0a02 100644
--- a/src/components/widgets/comment/CommentBox/UniversalTextArea.tsx
+++ b/src/components/widgets/comment/CommentBox/UniversalTextArea.tsx
@@ -1,6 +1,6 @@
 'use client'
 
-import { useCallback, useEffect, useRef } from 'react'
+import { useCallback, useEffect, useLayoutEffect, useRef } from 'react'
 import dynamic from 'next/dynamic'
 
 import { FloatPopover } from '~/components/ui/float-popover'
@@ -51,6 +51,14 @@ export const UniversalTextArea = () => {
       $ta.value = value
     }
   }, [value])
+
+  useLayoutEffect(() => {
+    // autofocus
+    const $ta = taRef.current
+    if (!$ta) return
+    $ta.selectionStart = $ta.selectionEnd = $ta.value.length
+    $ta.focus()
+  }, [])
   return (
     <TextArea
       ref={taRef}
diff --git a/src/components/widgets/comment/CommentBox/providers.tsx b/src/components/widgets/comment/CommentBox/providers.tsx
index d22274e780..1e6a4304fd 100644
--- a/src/components/widgets/comment/CommentBox/providers.tsx
+++ b/src/components/widgets/comment/CommentBox/providers.tsx
@@ -6,6 +6,9 @@ import { atomWithStorage } from 'jotai/utils'
 import type { CommentModel } from '@mx-space/api-client'
 import type { FC, PropsWithChildren } from 'react'
 
+import { useBeforeMounted } from '~/hooks/common/use-before-mounted'
+import { jotaiStore } from '~/lib/store'
+
 import { setCommentActionLeftSlot, useCommentActionLeftSlot } from './hooks'
 
 const commentStoragePrefix = 'comment-'
@@ -36,19 +39,25 @@ export const CommentBoxLifeCycleContext = createContext<{
 }>(null!)
 
 export const CommentBoxProvider = (
-  props: PropsWithChildren & { refId: string; afterSubmit?: () => void },
+  props: PropsWithChildren & {
+    refId: string
+    afterSubmit?: () => void
+    initialValue?: string
+  },
 ) => {
-  const { refId, children, afterSubmit } = props
+  const { refId, children, afterSubmit, initialValue } = props
+
+  const ctxValue = useRef({
+    ...createInitialValue(),
+    refId: atom(refId),
+  }).current
+  useBeforeMounted(() => {
+    if (initialValue) {
+      jotaiStore.set(ctxValue.text, initialValue)
+    }
+  })
   return (
-    <CommentBoxContext.Provider
-      key={refId}
-      value={
-        useRef({
-          ...createInitialValue(),
-          refId: atom(refId),
-        }).current
-      }
-    >
+    <CommentBoxContext.Provider key={refId} value={ctxValue}>
       <CommentBoxLifeCycleContext.Provider
         value={useMemo(() => ({ afterSubmit }), [afterSubmit])}
       >
diff --git a/src/components/widgets/comment/types.ts b/src/components/widgets/comment/types.ts
index 4cd7be9a9f..bcace72f97 100644
--- a/src/components/widgets/comment/types.ts
+++ b/src/components/widgets/comment/types.ts
@@ -2,4 +2,5 @@ export interface CommentBaseProps {
   refId: string
 
   afterSubmit?: () => void
+  initialValue?: string
 }
diff --git a/src/components/widgets/post/PostOutdate.tsx b/src/components/widgets/post/PostOutdate.tsx
index e5bfd0e37e..6674ddd997 100644
--- a/src/components/widgets/post/PostOutdate.tsx
+++ b/src/components/widgets/post/PostOutdate.tsx
@@ -10,7 +10,7 @@ export const PostOutdate = () => {
     return null
   }
   return dayjs().diff(dayjs(time), 'day') > 60 ? (
-    <Banner type="warning" className="mb-10">
+    <Banner type="warning" className="my-10">
       <span className="leading-[1.8]">
         这篇文章上次修改于 <RelativeTime date={time} />
         ，可能部分内容已经不适用，如有疑问可询问作者。
diff --git a/src/components/widgets/shared/AsideCommentButton.tsx b/src/components/widgets/shared/AsideCommentButton.tsx
index 4cb656ee03..ae2c2a9068 100644
--- a/src/components/widgets/shared/AsideCommentButton.tsx
+++ b/src/components/widgets/shared/AsideCommentButton.tsx
@@ -1,18 +1,17 @@
-import type { ModalContentComponent } from '~/providers/root/modal-stack-provider'
+import type { CommentModalProps } from './CommentModal'
 
 import { MotionButtonBase } from '~/components/ui/button'
 import { useIsClient } from '~/hooks/common/use-is-client'
 import { useModalStack } from '~/providers/root/modal-stack-provider'
 
-import { CommentBoxRoot } from '../comment/CommentBox'
-import { Comments } from '../comment/Comments'
+import { CommentModal } from './CommentModal'
 
-interface AsideCommentButtonProps {
-  title: string
-  refId: string
-}
+// eslint-disable-next-line @typescript-eslint/no-empty-interface
+export interface AsideCommentButtonProps {}
 
-export const AsideCommentButton = (props: AsideCommentButtonProps) => {
+export const AsideCommentButton = (
+  props: CommentModalProps & AsideCommentButtonProps,
+) => {
   const isClient = useIsClient()
   const { present } = useModalStack()
 
@@ -33,21 +32,3 @@ export const AsideCommentButton = (props: AsideCommentButtonProps) => {
     </MotionButtonBase>
   )
 }
-
-const CommentModal: ModalContentComponent<AsideCommentButtonProps> = (
-  props,
-) => {
-  const { refId, title, dismiss } = props
-
-  return (
-    <div className="max-w-95vw w-[700px] overflow-y-auto overflow-x-hidden">
-      <span>
-        回复： <h1 className="mt-4 text-lg font-medium">{title}</h1>
-      </span>
-
-      <CommentBoxRoot className="my-12" refId={refId} afterSubmit={dismiss} />
-
-      <Comments refId={refId} />
-    </div>
-  )
-}
diff --git a/src/components/widgets/shared/CommentModal.tsx b/src/components/widgets/shared/CommentModal.tsx
new file mode 100644
index 0000000000..6c946cf117
--- /dev/null
+++ b/src/components/widgets/shared/CommentModal.tsx
@@ -0,0 +1,34 @@
+import type { ModalContentComponent } from '~/providers/root/modal-stack-provider'
+
+import { CommentBoxRoot } from '../comment/CommentBox'
+import { Comments } from '../comment/Comments'
+
+export interface CommentModalProps {
+  title: string
+  refId: string
+
+  initialValue?: string
+}
+
+export const CommentModal: ModalContentComponent<CommentModalProps> = (
+  props,
+) => {
+  const { refId, title, dismiss, initialValue } = props
+
+  return (
+    <div className="max-w-95vw w-[700px] overflow-y-auto overflow-x-hidden">
+      <span>
+        回复： <h1 className="mt-4 text-lg font-medium">{title}</h1>
+      </span>
+
+      <CommentBoxRoot
+        initialValue={initialValue}
+        className="my-12"
+        refId={refId}
+        afterSubmit={dismiss}
+      />
+
+      <Comments refId={refId} />
+    </div>
+  )
+}
diff --git a/src/components/widgets/shared/WithArticleSelectionAction.tsx b/src/components/widgets/shared/WithArticleSelectionAction.tsx
new file mode 100644
index 0000000000..34e33bdb17
--- /dev/null
+++ b/src/components/widgets/shared/WithArticleSelectionAction.tsx
@@ -0,0 +1,108 @@
+import { useEffect, useRef, useState } from 'react'
+import { AnimatePresence, m } from 'framer-motion'
+
+import { useIsMobile } from '~/atoms'
+import { MotionButtonBase } from '~/components/ui/button'
+import { useIsClient } from '~/hooks/common/use-is-client'
+import { useModalStack } from '~/providers/root/modal-stack-provider'
+
+import { CommentModal } from './CommentModal'
+
+export const WithArticleSelectionAction: Component<{
+  refId: string
+  title: string
+}> = ({ refId, title, children }) => {
+  const isMobile = useIsMobile()
+  const [pos, setPos] = useState({
+    x: 0,
+    y: 0,
+  })
+  const [show, setShow] = useState(false)
+  const [selectedText, setSelectedText] = useState('')
+  const ref = useRef<HTMLDivElement>(null)
+
+  useEffect(() => {
+    const handler = (e: MouseEvent): void => {
+      if (window.getSelection()?.toString().length === 0) {
+        setShow(false)
+        return
+      }
+      if (ref.current?.contains(e.target as Node)) return
+      setShow(false)
+    }
+    document.addEventListener('mousedown', handler)
+    document.addEventListener('mouseup', handler)
+    return () => {
+      document.removeEventListener('mousedown', handler)
+      document.removeEventListener('mouseup', handler)
+    }
+  }, [])
+
+  const isClient = useIsClient()
+  const { present } = useModalStack()
+
+  if (isMobile || !isClient) return children
+  return (
+    <div
+      className="relative"
+      ref={ref}
+      onMouseUp={(e) => {
+        const $ = ref.current
+        if (!$) return
+
+        const selection = window.getSelection()
+        if (!selection) return
+        const selectedText = selection.toString()
+        if (selectedText.length === 0) return
+        const { top, left } = $.getBoundingClientRect()
+        setShow(true)
+        setSelectedText(selectedText)
+        setPos({
+          x: e.clientX - left + 10,
+          y: e.clientY - top + 10,
+        })
+      }}
+    >
+      {children}
+
+      <AnimatePresence>
+        {show && (
+          <m.div
+            className="absolute z-10 rounded-md border border-slate-200/90 bg-slate-100 px-4 py-3 text-sm dark:border-neutral-800/90 dark:bg-zinc-900"
+            data-event="selection-action"
+            style={{
+              left: pos.x,
+              top: pos.y,
+            }}
+            initial={{ y: 10, opacity: 0.6, scale: 0.96 }}
+            animate={{ y: 0, opacity: 1, scale: 1 }}
+            exit={{
+              y: 20,
+              opacity: 0,
+            }}
+          >
+            <MotionButtonBase
+              onClick={() => {
+                present({
+                  title: '评论',
+                  content: (rest) => (
+                    <CommentModal
+                      refId={refId}
+                      title={title}
+                      initialValue={`> ${selectedText
+                        ?.split('\n')
+                        .join('')}\n\n`}
+                      {...rest}
+                    />
+                  ),
+                })
+              }}
+            >
+              引用评论
+            </MotionButtonBase>
+          </m.div>
+        )}
+      </AnimatePresence>
+    </div>
+  )
+}
diff --git a/src/styles/tailwindcss.css b/src/styles/tailwindcss.css
index 3b6e3bcdf0..5116b3e4a7 100644
--- a/src/styles/tailwindcss.css
+++ b/src/styles/tailwindcss.css
@@ -62,6 +62,12 @@ textarea {
   font-size: 16px;
 }
 
+@screen lg {
+  input,
+  textarea {
+    font-size: 1rem;
+  }
+}
 @layer components {
   .scrollbar-none::-webkit-scrollbar {
     width: 0 !important;