diff --git a/simple-mind-map/src/layouts/CatalogOrganization.js b/simple-mind-map/src/layouts/CatalogOrganization.js
index 4cf06569..7013ef76 100644
--- a/simple-mind-map/src/layouts/CatalogOrganization.js
+++ b/simple-mind-map/src/layouts/CatalogOrganization.js
@@ -87,11 +87,11 @@ class CatalogOrganization extends Base {
               totalLeft += cur.width + marginX
             })
           } else {
-            let totalTop = node.top + node.height + marginY + node.expandBtnSize
+            let totalTop = node.top + node.height + marginY + (this.getNodeActChildrenLength(node) > 0 ? node.expandBtnSize : 0)
             node.children.forEach(cur => {
               cur.left = node.left + node.width * 0.5
               cur.top = totalTop
-              totalTop += cur.height + marginY + node.expandBtnSize
+              totalTop += cur.height + marginY + (this.getNodeActChildrenLength(cur) > 0 ? cur.expandBtnSize : 0)
             })
           }
         }
@@ -124,10 +124,9 @@ class CatalogOrganization extends Base {
           let marginY = this.getMarginY(layerIndex + 1)
           let totalHeight =
             node.children.reduce((h, item) => {
-              return h + item.height
+              return h + item.height + (this.getNodeActChildrenLength(item) > 0 ? item.expandBtnSize : 0)
             }, 0) +
-            (len + 1) * marginY +
-            len * node.expandBtnSize
+            (len + 1) * marginY
           this.updateBrothersTop(node, totalHeight)
         }
       },