diff --git a/pkg/controllers/status/cluster_status_controller.go b/pkg/controllers/status/cluster_status_controller.go
index 2c7e8ce26..d77b82d2e 100644
--- a/pkg/controllers/status/cluster_status_controller.go
+++ b/pkg/controllers/status/cluster_status_controller.go
@@ -510,7 +510,7 @@ func getAllocatingResource(podList []*corev1.Pod) corev1.ResourceList {
 	allocating := util.EmptyResource()
 	for _, pod := range podList {
 		if len(pod.Spec.NodeName) == 0 {
-			allocating.AddPodRequest(pod)
+			allocating.AddPodRequest(&pod.Spec)
 		}
 	}
 
@@ -522,7 +522,7 @@ func getAllocatedResource(podList []*corev1.Pod) corev1.ResourceList {
 	for _, pod := range podList {
 		// When the phase of a pod is Succeeded or Failed, kube-scheduler would not consider its resource occupation.
 		if len(pod.Spec.NodeName) != 0 && pod.Status.Phase != corev1.PodSucceeded && pod.Status.Phase != corev1.PodFailed {
-			allocated.AddPodRequest(pod)
+			allocated.AddPodRequest(&pod.Spec)
 		}
 	}
 
diff --git a/pkg/util/detector/detector.go b/pkg/util/detector/detector.go
index f42fa99fb..b144d8a58 100644
--- a/pkg/util/detector/detector.go
+++ b/pkg/util/detector/detector.go
@@ -672,22 +672,11 @@ func (d *ResourceDetector) getReplicaResourceRequirements(object map[string]inte
 	if err != nil {
 		return nil, err
 	}
-	resPtr := d.calculateResource(&podTemplateSpec.Spec)
-	replicaResourceRequirements := resPtr.ResourceList()
+	res := util.EmptyResource().AddPodRequest(&podTemplateSpec.Spec)
+	replicaResourceRequirements := res.ResourceList()
 	return replicaResourceRequirements, nil
 }
 
-func (d *ResourceDetector) calculateResource(podSpec *corev1.PodSpec) (res util.Resource) {
-	resPtr := &res
-	for _, c := range podSpec.Containers {
-		resPtr.Add(c.Resources.Requests)
-	}
-	for _, c := range podSpec.InitContainers {
-		resPtr.SetMaxResource(c.Resources.Requests)
-	}
-	return
-}
-
 // AddWaiting adds object's key to waiting list.
 func (d *ResourceDetector) AddWaiting(objectKey keys.ClusterWideKey) {
 	d.waitingLock.Lock()
diff --git a/pkg/util/resource.go b/pkg/util/resource.go
index 17acddcb6..e5b7f0d69 100644
--- a/pkg/util/resource.go
+++ b/pkg/util/resource.go
@@ -102,11 +102,12 @@ func (r *Resource) ResourceList() corev1.ResourceList {
 // - the sum of all app containers(spec.Containers) request for a resource.
 // - the effective init containers(spec.InitContainers) request for a resource.
 // The effective init containers request is the highest request on all init containers.
-func (r *Resource) AddPodRequest(pod *corev1.Pod) {
-	for _, container := range pod.Spec.Containers {
+func (r *Resource) AddPodRequest(podSpec *corev1.PodSpec) *Resource {
+	for _, container := range podSpec.Containers {
 		r.Add(container.Resources.Requests)
 	}
-	for _, container := range pod.Spec.InitContainers {
+	for _, container := range podSpec.InitContainers {
 		r.SetMaxResource(container.Resources.Requests)
 	}
+	return r
 }