diff --git a/charts/values.yaml b/charts/values.yaml
index 0b3851840..c727830e8 100644
--- a/charts/values.yaml
+++ b/charts/values.yaml
@@ -250,7 +250,16 @@ apiServer:
   ## @param apiServer.nodeSelector
   nodeSelector: { }
   ## @param apiServer.affinity
-  affinity: { }
+  affinity:
+    podAntiAffinity:
+      requiredDuringSchedulingIgnoredDuringExecution:
+        - labelSelector:
+            matchExpressions:
+              - key: app
+                operator: In
+                values:
+                  - karmada-apiserver
+          topologyKey: kubernetes.io/hostname
   ## @param apiServer.tolerations
   tolerations: [ ]
     # - key: node-role.kubernetes.io/master
@@ -269,8 +278,8 @@ apiServer:
   strategy:
     type: RollingUpdate
     rollingUpdate:
-      maxUnavailable: 0
-      maxSurge: 50%
+      maxUnavailable: 1
+      maxSurge: 1
 
 ## karmada aggregated apiserver config
 aggregatedApiServer: