diff --git a/cateditor/src/pages/editor/store/index.js b/cateditor/src/pages/editor/store/index.js
index 49a88d5..ad85cdc 100644
--- a/cateditor/src/pages/editor/store/index.js
+++ b/cateditor/src/pages/editor/store/index.js
@@ -179,10 +179,13 @@ export const store = new Vuex.Store({
 
     selectSection(state, id) {
       state.selectedSectionID = id
+      state.selectedModelID = null
+      state.selectedMaterialID = null
     },
 
     selectModel(state, id) {
       state.selectedModelID = id
+      state.selectedMaterialID = null
     },
 
     selectMaterial(state, id) {