diff --git a/cocos/scene-graph/node.ts b/cocos/scene-graph/node.ts
index 421e1a3f827..eebc530744b 100644
--- a/cocos/scene-graph/node.ts
+++ b/cocos/scene-graph/node.ts
@@ -630,7 +630,7 @@ export class Node extends CCObject implements ISchedulable, CustomSerializable {
             return;
         }
         const siblings = this._parent._children;
-        index = index !== -1 ? index : siblings.length - 1;
+        index = index >= 0 ? index : siblings.length + index;
         const oldIndex = siblings.indexOf(this);
         if (index !== oldIndex) {
             siblings.splice(oldIndex, 1);
diff --git a/native/cocos/core/scene-graph/Node.cpp b/native/cocos/core/scene-graph/Node.cpp
index bc84ecf0d26..5ec8550dd2d 100644
--- a/native/cocos/core/scene-graph/Node.cpp
+++ b/native/cocos/core/scene-graph/Node.cpp
@@ -353,7 +353,8 @@ void Node::setSiblingIndex(index_t index) {
         return;
     }
     ccstd::vector<IntrusivePtr<Node>> &siblings = _parent->_children;
-    index = index != -1 ? index : static_cast<index_t>(siblings.size()) - 1;
+    index = index >= 0 ? index : static_cast<index_t>(siblings.size()) + index;
+    index = index >= 0 ? index : 0;
     index_t oldIdx = getIdxOfChild(siblings, this);
     if (index != oldIdx) {
         if (oldIdx != CC_INVALID_INDEX) {