diff --git a/lib/note/index.js b/lib/note/index.js
index eac2845a..f0e5de20 100644
--- a/lib/note/index.js
+++ b/lib/note/index.js
@@ -259,8 +259,42 @@ const deleteNote = async (req, res) => {
   }
 }
 
+const updateNote = async (req, res) => {
+  if(req.isAuthenticated()) {
+    const noteId = await Note.parseNoteIdAsync(req.params.noteId)
+    try {
+      const note = await Note.findOne({
+        where: {
+          id: noteId,
+        }
+      })
+      if (!note) {
+        logger.error('Update note failed: Can\'t find the note.')
+        return errorNotFound(req, res)
+      }
+      
+      const updated = await note.update({
+        content: req.body.content,
+      })
+      if (!updated) {
+        logger.error('Update note failed: Write data error.')
+        return errorInternalError(req, res)
+      }
+      res.send({
+        status: 'ok'
+      })
+    } catch (err) {
+      logger.error('Update note failed: Internal Error.')
+      return errorInternalError(req, res)
+    }
+  } else {
+    return errorForbidden(req, res)
+  }
+}
+
 exports.showNote = showNote
 exports.showPublishNote = showPublishNote
 exports.noteActions = noteActions
 exports.listMyNotes = listMyNotes
 exports.deleteNote = deleteNote
+exports.updateNote = updateNote
diff --git a/lib/routes.js b/lib/routes.js
index d36d3cdf..744339e5 100644
--- a/lib/routes.js
+++ b/lib/routes.js
@@ -74,6 +74,8 @@ appRouter.get('/p/:shortid/:action', response.publishSlideActions)
 appRouter.get('/api/notes/myNotes', noteController.listMyNotes)
 // delete note by id
 appRouter.delete('/api/notes/:noteId', noteController.deleteNote)
+// update note content by id
+appRouter.put('/api/notes/:noteId', urlencodedParser, noteController.updateNote)
 // get note by id
 appRouter.get('/:noteId', wrap(noteController.showNote))
 // note actions