diff --git a/charts/_crds/bases/policy.karmada.io_clusterpropagationpolicies.yaml b/charts/_crds/bases/policy.karmada.io_clusterpropagationpolicies.yaml
index b33d8ddb9..7e6d3d433 100644
--- a/charts/_crds/bases/policy.karmada.io_clusterpropagationpolicies.yaml
+++ b/charts/_crds/bases/policy.karmada.io_clusterpropagationpolicies.yaml
@@ -384,8 +384,6 @@ spec:
                               - weight
                               type: object
                             type: array
-                        required:
-                        - staticWeightList
                         type: object
                     type: object
                   spreadConstraints:
diff --git a/charts/_crds/bases/policy.karmada.io_propagationpolicies.yaml b/charts/_crds/bases/policy.karmada.io_propagationpolicies.yaml
index 667d65a29..90b2bfc39 100644
--- a/charts/_crds/bases/policy.karmada.io_propagationpolicies.yaml
+++ b/charts/_crds/bases/policy.karmada.io_propagationpolicies.yaml
@@ -380,8 +380,6 @@ spec:
                               - weight
                               type: object
                             type: array
-                        required:
-                        - staticWeightList
                         type: object
                     type: object
                   spreadConstraints:
diff --git a/charts/_crds/bases/policy.karmada.io_replicaschedulingpolicies.yaml b/charts/_crds/bases/policy.karmada.io_replicaschedulingpolicies.yaml
index 6febc8419..27a7eff0e 100644
--- a/charts/_crds/bases/policy.karmada.io_replicaschedulingpolicies.yaml
+++ b/charts/_crds/bases/policy.karmada.io_replicaschedulingpolicies.yaml
@@ -173,8 +173,6 @@ spec:
                       - weight
                       type: object
                     type: array
-                required:
-                - staticWeightList
                 type: object
               resourceSelectors:
                 description: ResourceSelectors used to select resources.
diff --git a/pkg/apis/policy/v1alpha1/replicascheduling_types.go b/pkg/apis/policy/v1alpha1/replicascheduling_types.go
index 164af0e4c..512818567 100644
--- a/pkg/apis/policy/v1alpha1/replicascheduling_types.go
+++ b/pkg/apis/policy/v1alpha1/replicascheduling_types.go
@@ -35,8 +35,8 @@ type ReplicaSchedulingSpec struct {
 // ClusterPreferences describes weight for each cluster or for each group of cluster.
 type ClusterPreferences struct {
 	// StaticWeightList defines the static cluster weight.
-	// +required
-	StaticWeightList []StaticClusterWeight `json:"staticWeightList"`
+	// +optional
+	StaticWeightList []StaticClusterWeight `json:"staticWeightList,omitempty"`
 	// DynamicWeight specifies the factor to generates dynamic weight list.
 	// If specified, StaticWeightList will be ignored.
 	// +kubebuilder:validation:Enum=AvailableReplicas