diff --git a/src/main/java/io/ten1010/aipub/projectcontroller/controller/namespaced/ImageRegistrySecretReconciler.java b/src/main/java/io/ten1010/aipub/projectcontroller/controller/namespaced/ImageRegistrySecretReconciler.java
index 77ce4c11..e62dbdbf 100644
--- a/src/main/java/io/ten1010/aipub/projectcontroller/controller/namespaced/ImageRegistrySecretReconciler.java
+++ b/src/main/java/io/ten1010/aipub/projectcontroller/controller/namespaced/ImageRegistrySecretReconciler.java
@@ -16,10 +16,12 @@
 import io.ten1010.aipub.projectcontroller.domain.k8s.ImageRegistrySecretNameResolver;
 import io.ten1010.aipub.projectcontroller.domain.k8s.K8sApiProvider;
 import io.ten1010.aipub.projectcontroller.domain.k8s.KeyResolver;
+import io.ten1010.aipub.projectcontroller.domain.k8s.LabelConstants;
 import io.ten1010.aipub.projectcontroller.domain.k8s.NamespaceNameResolver;
 import io.ten1010.aipub.projectcontroller.domain.k8s.ReconciliationService;
 import io.ten1010.aipub.projectcontroller.domain.k8s.dto.V1alpha1Project;
 import io.ten1010.aipub.projectcontroller.domain.k8s.util.K8sObjectUtils;
+import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
 import java.util.Objects;
@@ -103,15 +105,36 @@ protected Result reconcileInternal(Request request) throws ApiException {
         deleteSecret(secretOpt.get());
         return new Result(false);
       }
-      Map<String, byte[]> reconciledData;
-      try {
-        reconciledData = this.reconciliationService.reconcileImageRegistrySecretData(
-            projectOpt.get());
-      } catch (ImageHubNotConnectedException e) {
+
+      Optional<String> currentRobotIdOpt = this.reconciliationService.resolveImageRegistryRobotId(
+          projectOpt.get());
+      if (currentRobotIdOpt.isEmpty()) {
         return logImageHubNotConnectedAndRequeue(projName);
       }
+      String currentRobotId = currentRobotIdOpt.get();
+      String existingRobotId = K8sObjectUtils.getAnnotations(secretOpt.get())
+          .get(LabelConstants.IMAGE_REGISTRY_ROBOT_ID_KEY);
+
+      Map<String, byte[]> reconciledData;
+      if (currentRobotId.equals(existingRobotId)) {
+        // robot 이 그대로면 비밀번호도 여전히 유효하다 — refreshSecret 을 또 부를 필요 없이
+        // 기존 Secret 데이터를 그대로 재사용한다. permission(bindingImageHubs) 변경은 robot
+        // 을 재생성하지 않으므로, 이 비교만으로 "재발급이 필요한가"를 판단할 수 있다.
+        reconciledData = secretOpt.get().getData();
+      } else {
+        try {
+          reconciledData = this.reconciliationService.reconcileImageRegistrySecretData(
+              projectOpt.get());
+        } catch (ImageHubNotConnectedException e) {
+          return logImageHubNotConnectedAndRequeue(projName);
+        }
+      }
+      Map<String, String> reconciledAnnotations = new HashMap<>(
+          K8sObjectUtils.getAnnotations(secretOpt.get()));
+      reconciledAnnotations.put(LabelConstants.IMAGE_REGISTRY_ROBOT_ID_KEY, currentRobotId);
+
       return reconcileExistingSecret(secretOpt.get(), reconciledReferences, reconciledType,
-          reconciledData, reconciledLabels);
+          reconciledData, reconciledLabels, reconciledAnnotations);
     }
 
     if (!K8sObjectUtils.isTerminating(projectOpt.get())) {
@@ -124,8 +147,13 @@ protected Result reconcileInternal(Request request) throws ApiException {
       }
       Map<String, String> reconciledLabels = this.reconciliationService.reconcileSecretLabels(
           namespaceOpt.get(), projectOpt.get());
+      Map<String, String> reconciledAnnotations = this.reconciliationService
+          .resolveImageRegistryRobotId(projectOpt.get())
+          .map(id -> Map.of(LabelConstants.IMAGE_REGISTRY_ROBOT_ID_KEY, id))
+          .orElse(Map.of());
       return reconcileNoExistingSecret(request.getNamespace(), request.getName(),
-          reconciledReferences, reconciledType, reconciledData, reconciledLabels);
+          reconciledReferences, reconciledType, reconciledData, reconciledLabels,
+          reconciledAnnotations);
     }
 
     return new Result(false);
@@ -143,13 +171,15 @@ private Result reconcileNoExistingSecret(
       List<V1OwnerReference> reconciledReferences,
       String reconciledType,
       Map<String, byte[]> reconciledData,
-      Map<String, String> reconciledLabels) throws ApiException {
+      Map<String, String> reconciledLabels,
+      Map<String, String> reconciledAnnotations) throws ApiException {
     V1Secret secret = new V1SecretBuilder()
         .withNewMetadata()
         .withNamespace(namespace)
         .withName(objName)
         .withOwnerReferences(reconciledReferences)
         .withLabels(reconciledLabels)
+        .withAnnotations(reconciledAnnotations)
         .endMetadata()
         .withType(reconciledType)
         .withData(reconciledData)
@@ -164,17 +194,20 @@ private Result reconcileExistingSecret(
       List<V1OwnerReference> reconciledReferences,
       String reconciledType,
       Map<String, byte[]> reconciledData,
-      Map<String, String> reconciledLabels) throws ApiException {
+      Map<String, String> reconciledLabels,
+      Map<String, String> reconciledAnnotations) throws ApiException {
     if (Set.copyOf(K8sObjectUtils.getOwnerReferences(existing))
         .equals(Set.copyOf(reconciledReferences)) &&
         Objects.equals(existing.getType(), reconciledType) &&
-        Objects.equals(existing.getData(), reconciledData)) {
+        Objects.equals(existing.getData(), reconciledData) &&
+        Objects.equals(K8sObjectUtils.getAnnotations(existing), reconciledAnnotations)) {
       return new Result(false);
     }
     V1Secret edited = new V1SecretBuilder(existing)
         .editMetadata()
         .withOwnerReferences(reconciledReferences)
         .withLabels(reconciledLabels)
+        .withAnnotations(reconciledAnnotations)
         .endMetadata()
         .withType(reconciledType)
         .withData(reconciledData)
diff --git a/src/main/java/io/ten1010/aipub/projectcontroller/domain/aipubbackend/AipubDockerConfigJsonResolver.java b/src/main/java/io/ten1010/aipub/projectcontroller/domain/aipubbackend/AipubDockerConfigJsonResolver.java
index 90998d7c..64399586 100644
--- a/src/main/java/io/ten1010/aipub/projectcontroller/domain/aipubbackend/AipubDockerConfigJsonResolver.java
+++ b/src/main/java/io/ten1010/aipub/projectcontroller/domain/aipubbackend/AipubDockerConfigJsonResolver.java
@@ -65,6 +65,13 @@ public Map<String, Object> resolve(V1alpha1Project project) {
     return json;
   }
 
+  @Override
+  public Optional<String> resolveImageRegistryRobotId(V1alpha1Project project) {
+    String username = this.imageRegistryRobotUsernameResolver.resolve(
+        K8sObjectUtils.getName(project));
+    return findByUsername(username).map(ImageRegistryRobot::getId);
+  }
+
   private String getPassword(ImageRegistryRobot robot) {
     Objects.requireNonNull(robot.getId());
     ImageRegistryRobotSecret secret = this.imageRegistryRobotService.refreshSecret(robot.getId());
diff --git a/src/main/java/io/ten1010/aipub/projectcontroller/domain/k8s/DefaultDockerConfigJsonResolver.java b/src/main/java/io/ten1010/aipub/projectcontroller/domain/k8s/DefaultDockerConfigJsonResolver.java
index 8622c6f0..3ad2841d 100644
--- a/src/main/java/io/ten1010/aipub/projectcontroller/domain/k8s/DefaultDockerConfigJsonResolver.java
+++ b/src/main/java/io/ten1010/aipub/projectcontroller/domain/k8s/DefaultDockerConfigJsonResolver.java
@@ -2,6 +2,7 @@
 
 import io.ten1010.aipub.projectcontroller.domain.k8s.dto.V1alpha1Project;
 import java.util.Map;
+import java.util.Optional;
 
 public class DefaultDockerConfigJsonResolver implements DockerConfigJsonResolver {
 
@@ -10,4 +11,9 @@ public Map<String, Object> resolve(V1alpha1Project project) {
     return Map.of();
   }
 
+  @Override
+  public Optional<String> resolveImageRegistryRobotId(V1alpha1Project project) {
+    return Optional.empty();
+  }
+
 }
diff --git a/src/main/java/io/ten1010/aipub/projectcontroller/domain/k8s/DockerConfigJsonResolver.java b/src/main/java/io/ten1010/aipub/projectcontroller/domain/k8s/DockerConfigJsonResolver.java
index 730c6422..85a4b44f 100644
--- a/src/main/java/io/ten1010/aipub/projectcontroller/domain/k8s/DockerConfigJsonResolver.java
+++ b/src/main/java/io/ten1010/aipub/projectcontroller/domain/k8s/DockerConfigJsonResolver.java
@@ -2,9 +2,16 @@
 
 import io.ten1010.aipub.projectcontroller.domain.k8s.dto.V1alpha1Project;
 import java.util.Map;
+import java.util.Optional;
 
 public interface DockerConfigJsonResolver {
 
   Map<String, Object> resolve(V1alpha1Project project);
 
+  /**
+   * project 에 연결된 image registry robot 의 id 를 조회한다. secret 을 새로 발급받지 않고
+   * "지금 이 프로젝트의 robot 이 마지막으로 발급했던 robot 과 같은가"만 값싸게 확인하기 위한 용도.
+   */
+  Optional<String> resolveImageRegistryRobotId(V1alpha1Project project);
+
 }
diff --git a/src/main/java/io/ten1010/aipub/projectcontroller/domain/k8s/LabelConstants.java b/src/main/java/io/ten1010/aipub/projectcontroller/domain/k8s/LabelConstants.java
index cde63ae4..c956b398 100644
--- a/src/main/java/io/ten1010/aipub/projectcontroller/domain/k8s/LabelConstants.java
+++ b/src/main/java/io/ten1010/aipub/projectcontroller/domain/k8s/LabelConstants.java
@@ -16,6 +16,8 @@ public final class LabelConstants {
       ProjectApiConstants.AIPUB_GROUP + "/" + "workload-name";
   public static final String WORKLOAD_KIND_KEY =
       ProjectApiConstants.AIPUB_GROUP + "/" + "workload-kind";
+  public static final String IMAGE_REGISTRY_ROBOT_ID_KEY =
+      ProjectApiConstants.PROJECT_GROUP + "/" + "image-registry-robot-id";
 
   private LabelConstants() {
   }
diff --git a/src/main/java/io/ten1010/aipub/projectcontroller/domain/k8s/ReconciliationService.java b/src/main/java/io/ten1010/aipub/projectcontroller/domain/k8s/ReconciliationService.java
index aae21b57..d9274a3e 100644
--- a/src/main/java/io/ten1010/aipub/projectcontroller/domain/k8s/ReconciliationService.java
+++ b/src/main/java/io/ten1010/aipub/projectcontroller/domain/k8s/ReconciliationService.java
@@ -914,6 +914,15 @@ public Map<String, byte[]> reconcileImageRegistrySecretData(V1alpha1Project proj
     }
   }
 
+  /**
+   * project 에 연결된 image registry robot 의 id 를 조회한다(secret 재발급 없이). 이미 반영된
+   * Secret 의 {@link LabelConstants#IMAGE_REGISTRY_ROBOT_ID_KEY} annotation 과 비교해서, robot
+   * 이 그대로인지(=비밀번호도 그대로 유효한지) 판단하는 용도로 쓰인다.
+   */
+  public Optional<String> resolveImageRegistryRobotId(V1alpha1Project project) {
+    return this.dockerConfigJsonResolver.resolveImageRegistryRobotId(project);
+  }
+
   public Map<String, String> reconcileNodeLabels(V1Node existing) {
     Map<String, String> existingLabels = K8sObjectUtils.getLabels(existing);
     Map<String, String> reconciled = new HashMap<>(existingLabels);