diff --git a/common/component/src/main/ets/components/NoteContent.ets b/common/component/src/main/ets/components/NoteContent.ets
index 8de6541817354cfbc892c98f5176a4fde5ee46ef..642575357bcb37c09637d485c42a6d7c8bd4e96c 100644
--- a/common/component/src/main/ets/components/NoteContent.ets
+++ b/common/component/src/main/ets/components/NoteContent.ets
@@ -106,9 +106,11 @@ export struct NoteContent {
                 this.editContentFlag = true
               }
               LogUtil.info(TAG, "finish loadurl")
-              this.controllerShow.runJavaScript({
-                script: "RICH_EDITOR.setHtml('" + this.selectedNoteData.content_text + "')"
-              })
+              if (this.selectedNoteData) {
+                this.controllerShow.runJavaScript({
+                  script: "RICH_EDITOR.setHtml('" + this.selectedNoteData.content_text + "')"
+                })
+              }
             })
             .zoomAccess(false)
             .height('70%')
diff --git a/common/utils/src/main/ets/default/baseUtil/RdbStoreUtil.ets b/common/utils/src/main/ets/default/baseUtil/RdbStoreUtil.ets
index 1a25f27f3a887e487c2b13bd28e67a22242149cc..5fd73c256ab56c66d57c793dc90ef9aae56f9990 100644
--- a/common/utils/src/main/ets/default/baseUtil/RdbStoreUtil.ets
+++ b/common/utils/src/main/ets/default/baseUtil/RdbStoreUtil.ets
@@ -299,7 +299,13 @@ export default {
       LogUtil.info(TAG, "noteData.content_text is null or undefined")
       return imgNameArray
     }
-    let html = atob(noteData.content_text)
+    let base64regex = /^([0-9a-zA-Z+/]{4})*(([0-9a-zA-Z+/]{2}==)|([0-9a-zA-Z+/]{3}=))?$/
+    let html = ""
+    if (base64regex.test(noteData.content_text)) {
+      html = atob(noteData.content_text)
+    } else {
+      html = noteData.content_text
+    }
     if (html == undefined || html == null || html == "") {
       return imgNameArray
     }
diff --git a/product/tablet/src/main/ets/MainAbility/MainAbility.ts b/product/tablet/src/main/ets/MainAbility/MainAbility.ts
index e9ca97db90e3d195094ca11c90979bbebd69102e..4a3ff6e60ae9911a6cb34125b3cf123b3779b9b0 100644
--- a/product/tablet/src/main/ets/MainAbility/MainAbility.ts
+++ b/product/tablet/src/main/ets/MainAbility/MainAbility.ts
@@ -120,7 +120,13 @@ export default class MainAbility extends Ability {
         if (html == undefined || html == null || html == "") {
             return srcArray
         }
-        let realHtml = atob(html)
+        let base64regex = /^([0-9a-zA-Z+/]{4})*(([0-9a-zA-Z+/]{2}==)|([0-9a-zA-Z+/]{3}=))?$/
+        let realHtml = ""
+        if (base64regex.test(html)) {
+            realHtml = atob(html)
+        } else {
+            realHtml = html;
+        }
         let imgReg = /<img[^>]+>/g
         let srcReg = /src=[\'\"]?([^\'\"]*)[\'\"]?/i
         let imgArray = realHtml.match(imgReg)