diff --git a/charts/templates/karmada_apiserver.yaml b/charts/templates/karmada_apiserver.yaml
index b77f3d98d..9a54dfd3e 100644
--- a/charts/templates/karmada_apiserver.yaml
+++ b/charts/templates/karmada_apiserver.yaml
@@ -70,6 +70,8 @@ spec:
             - --requestheader-username-headers=X-Remote-User
             - --tls-cert-file=/etc/kubernetes/pki/karmada.crt
             - --tls-private-key-file=/etc/kubernetes/pki/karmada.key
+            - --max-requests-inflight={{ .Values.apiServer.maxRequestsInflight }}
+            - --max-mutating-requests-inflight={{ .Values.apiServer.maxMutatingRequestsInflight }}
           ports:
             - name: http
               containerPort: 5443
diff --git a/charts/values.yaml b/charts/values.yaml
index 4c2da7b37..8bc1d5ec6 100644
--- a/charts/values.yaml
+++ b/charts/values.yaml
@@ -244,6 +244,8 @@ apiServer:
   ## will take effect when 'apiServer.serviceType' is 'NodePort'.
   ## If no port is specified, the nodePort will be automatically assigned.
   nodePort: 0
+  maxRequestsInflight: 1500
+  maxMutatingRequestsInflight: 500
 
 ## karmada aggregated apiserver config
 aggregatedApiServer: