diff --git a/api/v1/devcontainerapp_types.go b/api/v1/devcontainerapp_types.go
index 0aac191..50e84ce 100644
--- a/api/v1/devcontainerapp_types.go
+++ b/api/v1/devcontainerapp_types.go
@@ -98,6 +98,10 @@ type DevcontainerAppStatus struct {
 	// NodePortAssigned 存储 DevcontainerApp CRD调度后集群分配的 NodePort
 	// +optional
 	NodePortAssigned uint16 `json:"nodePortAssigned"`
+
+	// Ready 标识 DevcontainerApp 管理的 Pod 的 Readiness Probe 是否达到就绪状态
+	// +optional
+	Ready bool `json:"ready"`
 }
 
 // +kubebuilder:object:root=true
diff --git a/config/crd/bases/devcontainer.devstar.cn_devcontainerapps.yaml b/config/crd/bases/devcontainer.devstar.cn_devcontainerapps.yaml
index 41453fa..eb00683 100644
--- a/config/crd/bases/devcontainer.devstar.cn_devcontainerapps.yaml
+++ b/config/crd/bases/devcontainer.devstar.cn_devcontainerapps.yaml
@@ -153,6 +153,9 @@ spec:
               nodePortAssigned:
                 description: NodePortAssigned 存储 DevcontainerApp CRD调度后集群分配的 NodePort
                 type: integer
+              ready:
+                description: Ready 标识 DevcontainerApp 管理的 Pod 的 Readiness Probe 是否达到就绪状态
+                type: boolean
             type: object
         type: object
     served: true
diff --git a/internal/controller/devcontainerapp_controller.go b/internal/controller/devcontainerapp_controller.go
index 021c142..b4aa976 100644
--- a/internal/controller/devcontainerapp_controller.go
+++ b/internal/controller/devcontainerapp_controller.go
@@ -86,6 +86,23 @@ func (r *DevcontainerAppReconciler) Reconcile(ctx context.Context, req ctrl.Requ
 			return ctrl.Result{}, err
 		}
 	} else {
+		// 若 StatefulSet.Status.readyReplicas 变化，则更新 DevcontainerApp.Status.Ready 域（mark/un-mark）
+		if statefulSetInNamespace.Status.ReadyReplicas > 0 {
+			app.Status.Ready = true
+			if err := r.Status().Update(ctx, app); err != nil {
+				logger.Error(err, "Failed to update DevcontainerApp.Status.Ready", "DevcontainerApp.Status.Ready", app.Status.Ready)
+				return ctrl.Result{}, err
+			}
+			logger.Info("DevContainer is now ready", "ReadyReplicas", statefulSetInNamespace.Status.ReadyReplicas)
+		} else {
+			app.Status.Ready = false
+			if err := r.Status().Update(ctx, app); err != nil {
+				logger.Error(err, "Failed to un-mark DevcontainerApp.Status.Ready", "DevcontainerApp.Status.Ready", app.Status.Ready)
+				return ctrl.Result{}, err
+			}
+			logger.Info("DevContainer is NOT ready", "ReadyReplicas", statefulSetInNamespace.Status.ReadyReplicas)
+		}
+
 		// 这里会反复触发更新
 		// 原因：在 SetupWithManager方法中，监听了 StatefulSet ，所以只要更新 StatefulSet 就会触发
 		//     此处更新和 controllerManager 更新 StatefulSet 都会触发更新事件，导致循环触发