diff --git a/src/menus/link/bind-event/tooltip-event.ts b/src/menus/link/bind-event/tooltip-event.ts
index 6bcc62492..c3648bfcc 100644
--- a/src/menus/link/bind-event/tooltip-event.ts
+++ b/src/menus/link/bind-event/tooltip-event.ts
@@ -6,6 +6,7 @@
 import $, { DomElement } from '../../../utils/dom-core'
 import Tooltip, { TooltipConfType } from '../../menu-constructors/Tooltip'
 import Editor from '../../../editor/index'
+import { EXTRA_TAG } from '../is-active'
 
 /**
  * 生成 Tooltip 的显示隐藏函数
@@ -50,9 +51,26 @@ function createShowHideFn(editor: Editor) {
                                 style=${$selectIMG?.getAttribute('style')}>`
                         )
                     } else {
-                        // 用文字，替换链接
-                        const selectionText = $link.text()
-                        editor.cmd.do('insertHTML', '<span>' + selectionText + '</span>')
+                        /**
+                         * 替换链接
+                         *
+                         * 两种情况
+                         * 1. a标签里面可能会含有其他元素如：b, i等，要保留： <a><b></b></a> 先添加链接后加粗
+                         * 2. 特殊标签里嵌套a，也要保留特殊标签：<b><a></a></b>  先加粗后添加链接
+                         */
+                        const linkElem = $link.elems[0]
+
+                        // a标签里面的html结构
+                        const selectionContent = linkElem.innerHTML
+
+                        // a标签的父元素
+                        const linkParentNode = linkElem.parentElement
+
+                        if (linkParentNode && EXTRA_TAG.includes(linkParentNode.nodeName)) {
+                            linkParentNode.innerHTML = selectionContent
+                        } else {
+                            editor.cmd.do('insertHTML', '<span>' + selectionContent + '</span>')
+                        }
                     }
 
                     // 返回 true，表示执行完之后，隐藏 tooltip。否则不隐藏。
diff --git a/src/menus/link/create-panel-conf.ts b/src/menus/link/create-panel-conf.ts
index 34e83a65a..8bbff1831 100644
--- a/src/menus/link/create-panel-conf.ts
+++ b/src/menus/link/create-panel-conf.ts
@@ -7,7 +7,7 @@ import Editor from '../../editor/index'
 import { PanelConf } from '../menu-constructors/Panel'
 import { getRandom } from '../../utils/util'
 import $, { DomElement } from '../../utils/dom-core'
-import isActive from './is-active'
+import isActive, { getParentNodeA, EXTRA_TAG } from './is-active'
 import { insertHtml } from './util'
 
 export default function (editor: Editor, text: string, link: string): PanelConf {
@@ -78,9 +78,35 @@ export default function (editor: Editor, text: string, link: string): PanelConf
         }
         // 选中整个链接
         selectLinkElem()
-        // 用文本替换链接
-        const selectionText = $selectedLink.text()
-        editor.cmd.do('insertHTML', '<span>' + selectionText + '</span>')
+
+        /**
+         * 替换链接
+         *
+         * 两种情况
+         * 1. 特殊标签里嵌套a，也要保留特殊标签：<b><a></a></b>  先加粗后添加链接
+         * 2. a标签里面可能会含有其他元素如：b, i等，要保留： <a><b></b></a> 先添加链接后加粗
+         */
+
+        if ($selectedLink.getNodeName() === 'A') {
+            const linkElem = $selectedLink.elems[0]
+            const linkParentNode = linkElem.parentElement
+
+            // 判断父级元素是不是特殊元素
+            if (linkParentNode && EXTRA_TAG.includes(linkParentNode.nodeName)) {
+                // 将特殊元素的内容设置为a标签的内容
+                linkParentNode.innerHTML = linkElem.innerHTML
+            } else {
+                // 如果父级不是特殊元素，直接设置内容
+                editor.cmd.do('insertHTML', '<span>' + linkElem.innerHTML + '</span>')
+            }
+        } else {
+            // 如果链接上选区是特殊元素，需要获取最近的a标签，获取html结果，以保留特殊元素
+            const parentNodeA = getParentNodeA($selectedLink)!
+
+            const selectionContent = parentNodeA.innerHTML
+
+            editor.cmd.do('insertHTML', '<span>' + selectionContent + '</span>')
+        }
     }
 
     /**
@@ -143,6 +169,10 @@ export default function (editor: Editor, text: string, link: string): PanelConf
                         selector: '#' + btnOkId,
                         type: 'click',
                         fn: () => {
+                            // 获取链接区间的顶层元素
+                            const $selectionContainerElem = editor.selection.getSelectionContainerElem()!
+                            const $elem = $selectionContainerElem?.elems[0]
+
                             // 获取选取
                             editor.selection.restoreSelection()
                             const topNode = editor.selection
@@ -181,6 +211,34 @@ export default function (editor: Editor, text: string, link: string): PanelConf
                             if (!text) text = link
                             // 校验链接是否满足用户的规则，若不满足则不插入
                             if (!checkLink(text, link)) return
+
+                            /**
+                             * 插入链接
+                             * 1、针对首次插入链接，利用选区插入a标签即可
+                             * 1、针对：<a><b>xxxx</b></a> 情况，用户操作修改或者替换链接时，编辑得到a，修改已有a标签的href
+                             * 2、针对：<b><a>xxxx</a></b> 情况, 用户操作修改或者替换链接时，只要修改已有a标签的href
+                             */
+
+                            // 选区范围是a标签，直接替换href链接即可
+                            if ($elem?.nodeName === 'A') {
+                                $elem.setAttribute('href', link)
+
+                                return true
+                            }
+
+                            // 不是a标签，并且为特殊元素, 需要检查是不是首次设置链接，还是已经设置过链接。
+                            if ($elem?.nodeName !== 'A' && EXTRA_TAG.includes($elem.nodeName)) {
+                                const nodeA = getParentNodeA($selectionContainerElem)
+
+                                // 防止第一次设置就为特殊元素，这种情况应该为首次设置链接
+                                if (nodeA) {
+                                    nodeA.setAttribute('href', link)
+
+                                    return true
+                                }
+                            }
+
+                            // 首次插入链接
                             insertLink(text, link)
 
                             // 返回 true，表示该事件执行完之后，panel 要关闭。否则 panel 不会关闭
diff --git a/src/menus/link/index.ts b/src/menus/link/index.ts
index 6f9e46772..b4c24c30e 100644
--- a/src/menus/link/index.ts
+++ b/src/menus/link/index.ts
@@ -7,7 +7,7 @@ import PanelMenu from '../menu-constructors/PanelMenu'
 import Editor from '../../editor/index'
 import $, { DomElement } from '../../utils/dom-core'
 import createPanelConf from './create-panel-conf'
-import isActive from './is-active'
+import isActive, { getParentNodeA } from './is-active'
 import Panel from '../menu-constructors/Panel'
 import { MenuActive } from '../menu-constructors/Menu'
 import bindEvent from './bind-event/index'
@@ -57,14 +57,27 @@ class Link extends PanelMenu implements MenuActive {
         }
 
         if (this.isActive) {
+            let text = ''
+            let href = ''
+
             // 菜单被激活，说明选区在链接里
             $linkElem = editor.selection.getSelectionContainerElem()
+
             if (!$linkElem) {
                 return
             }
 
+            if ($linkElem.getNodeName() !== 'A') {
+                const parentNodeA = getParentNodeA($linkElem)!
+
+                $linkElem = $(parentNodeA)
+            }
+
+            text = $linkElem.text()
+            href = $linkElem.attr('href')
+
             // 弹出 panel
-            this.createPanel($linkElem.text(), $linkElem.attr('href'))
+            this.createPanel(text, href)
         } else {
             // 菜单未被激活，说明选区不在链接里
             if (editor.selection.isSelectionEmpty()) {
diff --git a/src/menus/link/is-active.ts b/src/menus/link/is-active.ts
index 7437110d1..9416c0d03 100644
--- a/src/menus/link/is-active.ts
+++ b/src/menus/link/is-active.ts
@@ -4,17 +4,46 @@
  */
 
 import Editor from '../../editor/index'
+import { DomElement } from '../../utils/dom-core'
 
-function isActive(editor: Editor): boolean {
+// 加粗 b
+// 字号/字体/颜色 font
+// 斜体 i
+// 删除线 strike
+export const EXTRA_TAG = ['B', 'FONT', 'I', 'STRIKE']
+
+export function getParentNodeA(selectionELem: DomElement) {
+    let node = selectionELem.elems[0]
+
+    while (node && EXTRA_TAG.includes(node.nodeName)) {
+        node = node.parentElement!
+
+        if (node.nodeName === 'A') {
+            return node
+        }
+    }
+}
+
+function isActive(editor: Editor) {
     const $selectionELem = editor.selection.getSelectionContainerElem()
-    if (!$selectionELem?.length) {
+
+    if (!$selectionELem?.elems?.length) {
         return false
     }
+
+    // 选中直接是a元素
     if ($selectionELem.getNodeName() === 'A') {
         return true
-    } else {
-        return false
     }
+
+    // 有可能a里面嵌套了其他元素，比如b、i元素等
+    const parentNode = getParentNodeA($selectionELem)
+
+    if (parentNode && parentNode.nodeName === 'A') {
+        return true
+    }
+
+    return false
 }
 
 export default isActive