diff --git a/crd/multitenancy/api/v1alpha1/podnetworkinstance.go b/crd/multitenancy/api/v1alpha1/podnetworkinstance.go
index 72ee4bfad10..c48f6c69388 100644
--- a/crd/multitenancy/api/v1alpha1/podnetworkinstance.go
+++ b/crd/multitenancy/api/v1alpha1/podnetworkinstance.go
@@ -47,9 +47,21 @@ type PodNetworkInstanceSpec struct {
 
 // PodNetworkInstanceStatus defines the observed state of PodNetworkInstance
 type PodNetworkInstanceStatus struct {
-	PodIPAddresses []string `json:"podIPAddresses,omitempty"`
+	PodIPAddresses []string  `json:"podIPAddresses,omitempty"`
+	Status         PNIStatus `json:"status,omitempty"`
 }
 
+// PNIStatus indicates the status of PNI
+// +kubebuilder:validation:Enum=Ready;CreateReservationSetError;PodNetworkNotReady;InsufficientIPAddressesOnSubnet
+type PNIStatus string
+
+const (
+	PNIStatusReady                           PNIStatus = "Ready"
+	PNIStatusCreateReservationSetError       PNIStatus = "CreateReservationSetError"
+	PNIStatusPodNetworkNotReady              PNIStatus = "PodNetworkNotReady"
+	PNIStatusInsufficientIPAddressesOnSubnet PNIStatus = "InsufficientIPAddressesOnSubnet"
+)
+
 func init() {
 	SchemeBuilder.Register(&PodNetworkInstance{}, &PodNetworkInstanceList{})
 }
diff --git a/crd/multitenancy/manifests/multitenancy.acn.azure.com_podnetworkinstances.yaml b/crd/multitenancy/manifests/multitenancy.acn.azure.com_podnetworkinstances.yaml
index 0c9e7c11121..436df43ff71 100644
--- a/crd/multitenancy/manifests/multitenancy.acn.azure.com_podnetworkinstances.yaml
+++ b/crd/multitenancy/manifests/multitenancy.acn.azure.com_podnetworkinstances.yaml
@@ -71,6 +71,14 @@ spec:
                 items:
                   type: string
                 type: array
+              status:
+                description: PNIStatus indicates the status of PNI
+                enum:
+                - Ready
+                - CreateReservationSetError
+                - PodNetworkNotReady
+                - InsufficientIPAddressesOnSubnet
+                type: string
             type: object
         type: object
     served: true