diff --git a/simple-mind-map/src/core/render/node/Node.js b/simple-mind-map/src/core/render/node/Node.js
index 4a5a6ac2..9c0c8910 100644
--- a/simple-mind-map/src/core/render/node/Node.js
+++ b/simple-mind-map/src/core/render/node/Node.js
@@ -385,10 +385,10 @@ class Node {
       this.active(e)
     })
     this.group.on('mousedown', e => {
-      if (this.isRoot && e.which === 3) {
+      if (this.isRoot && e.which === 3 && !this.mindMap.opt.readonly) {
         e.stopPropagation()
       }
-      if (!this.isRoot) {
+      if (!this.isRoot && !this.mindMap.opt.readonly) {
         e.stopPropagation()
       }
       // 多选和取消多选
@@ -414,7 +414,7 @@ class Node {
       this.mindMap.emit('node_mousedown', this, e)
     })
     this.group.on('mouseup', e => {
-      if (!this.isRoot) {
+      if (!this.isRoot && !this.mindMap.opt.readonly) {
         e.stopPropagation()
       }
       this.mindMap.emit('node_mouseup', this, e)