diff --git a/components/lib/splitter/Splitter.js b/components/lib/splitter/Splitter.js
index 358e4c2474..cc2bfb7a08 100644
--- a/components/lib/splitter/Splitter.js
+++ b/components/lib/splitter/Splitter.js
@@ -118,7 +118,9 @@ export const Splitter = React.memo(
         }, [props.stateStorage]);
 
         const saveState = (sizes) => {
-            getStorage().setItem(props.stateKey, JSON.stringify(sizes));
+            if (ObjectUtils.isArray(sizes)) {
+                getStorage().setItem(props.stateKey, JSON.stringify(sizes));
+            }
         };
 
         const restoreState = React.useCallback(() => {