diff --git a/k8s/charts/seaweedfs/templates/cosi-bucket-class.yaml b/k8s/charts/seaweedfs/templates/cosi-bucket-class.yaml
new file mode 100644
index 000000000..e5503abd8
--- /dev/null
+++ b/k8s/charts/seaweedfs/templates/cosi-bucket-class.yaml
@@ -0,0 +1,16 @@
+{{- if and .Values.cosi.enabled .Values.cosi.bucketClassName }}
+---
+kind: BucketClass
+apiVersion: objectstorage.k8s.io/v1alpha1
+metadata:
+  name: {{ .Values.cosi.bucketClassName }}
+driverName: {{ .Values.cosi.driverName }}
+deletionPolicy: Delete
+---
+kind: BucketAccessClass
+apiVersion: objectstorage.k8s.io/v1alpha1
+metadata:
+  name: {{ .Values.cosi.bucketClassName }}
+driverName: {{ .Values.cosi.driverName }}
+authenticationType: KEY
+{{- end }}
diff --git a/k8s/charts/seaweedfs/values.yaml b/k8s/charts/seaweedfs/values.yaml
index 13df63472..e42ad069a 100644
--- a/k8s/charts/seaweedfs/values.yaml
+++ b/k8s/charts/seaweedfs/values.yaml
@@ -874,6 +874,7 @@ cosi:
   enabled: false
   image: "ghcr.io/seaweedfs/seaweedfs-cosi-driver:v0.1.1"
   driverName: "seaweedfs.objectstorage.k8s.io"
+  bucketClassName: "seaweedfs"
   endpoint: ""
   region: ""