diff --git a/assets/scripts/UI/Academy/ChooseHeroUpQuality.ts b/assets/scripts/UI/Academy/ChooseHeroUpQuality.ts
index 11c174b5..02bd5591 100644
--- a/assets/scripts/UI/Academy/ChooseHeroUpQuality.ts
+++ b/assets/scripts/UI/Academy/ChooseHeroUpQuality.ts
@@ -78,6 +78,10 @@ export class ChooseHeroUpQuality extends UIBase {
 		}
 
 		if (this.mainHeroData && this.secHeroData) {
+			if (this.mainHeroData == this.secHeroData) {
+				cc.uiHelper.showTips('Must Choose two different hero');
+				return;
+			}
 			NetManage.upgradeQualityPreview(
 				this.mainHeroData,
 				this.secHeroData,
@@ -114,6 +118,11 @@ export class ChooseHeroUpQuality extends UIBase {
 
 	onOk() {
 		if (this.mainHeroData && this.secHeroData) {
+			if (this.mainHeroData == this.secHeroData) {
+				cc.uiHelper.showTips('Must Choose two different hero');
+				return;
+			}
+
 			NetManage.heroUpgradeQuality(
 				this.mainHeroData,
 				this.secHeroData,