diff --git a/src/main/java/kr/re/etri/autoflow/controllers/ExperimentsController.java b/src/main/java/kr/re/etri/autoflow/controllers/ExperimentsController.java
index 3e5e25b..7ede737 100644
--- a/src/main/java/kr/re/etri/autoflow/controllers/ExperimentsController.java
+++ b/src/main/java/kr/re/etri/autoflow/controllers/ExperimentsController.java
@@ -125,12 +125,14 @@ public class ExperimentsController {
 //                .doOnError(e -> log.error("Kubeflow experiment 등록 실패", e));
 //    }
 
-    @Operation(summary = "Experiment 등록 (Kubeflow + MLflow)")
     @PostMapping
     @Transactional
     public Mono<ResponseEntity<ExperimentsEntity>> createExperiment(@RequestBody ExperimentsEntity experiment) {
 
-        ExperimentsEntity saved = experimentsService.save(experiment);
+        // DB에 미리 저장하지 않고, 메모리에 보관
+        ExperimentsEntity saved = new ExperimentsEntity();
+        saved.setDisplayName(experiment.getDisplayName());
+        saved.setDescription(experiment.getDescription());
 
         Map<String, Object> kubeflowPayload = new HashMap<>();
         kubeflowPayload.put("display_name", saved.getDisplayName());
@@ -146,7 +148,6 @@ public class ExperimentsController {
                 .retrieve()
                 .bodyToMono(Map.class)
                 .flatMap(kubeflowResp -> {
-                    // Kubeflow 응답 처리
                     if (kubeflowResp.containsKey("experiment_id")) {
                         saved.setKubeFlowId((String) kubeflowResp.get("experiment_id"));
                     }
@@ -157,18 +158,7 @@ public class ExperimentsController {
                                         .toLocalDateTime()
                         );
                     }
-                    if (kubeflowResp.containsKey("last_run_created_at")) {
-                        saved.setKubeflowLastRunCreatedAt(
-                                Instant.parse((String) kubeflowResp.get("last_run_created_at"))
-                                        .atZone(ZoneId.of("Asia/Seoul"))
-                                        .toLocalDateTime()
-                        );
-                    }
-                    if (kubeflowResp.containsKey("storage_state")) {
-                        saved.setKubeflowStorageState((String) kubeflowResp.get("storage_state"));
-                    }
 
-                    experimentsService.save(saved);
                     log.info("Kubeflow experiment 등록 완료: {}", kubeflowResp);
 
                     // 2️⃣ MLflow 등록
@@ -188,56 +178,30 @@ public class ExperimentsController {
                                 log.info("MLflow experiment 등록 완료: {}", createResp);
                                 String mlflowExpId = (String) createResp.get("experiment_id");
 
-                                // 3️⃣ MLflow 조회
-                                return webClientBuilder
-                                        .build()
+                                return webClientBuilder.build()
                                         .get()
                                         .uri(mlflowBaseUrl + "/ajax-api/2.0/mlflow/experiments/get?experiment_id=" + mlflowExpId)
                                         .headers(headers -> headers.setBasicAuth(mlflowUser, mlflowPassword))
                                         .retrieve()
                                         .bodyToMono(Map.class)
-                                        .flatMap(getResp -> {
-                                            log.info("MLflow experiment 상세 조회 완료: {}", getResp);
-                                            // 필요한 필드를 entity에 반영
+                                        .map(getResp -> {
                                             if (getResp.containsKey("experiment")) {
                                                 Map<String, Object> exp = (Map<String, Object>) getResp.get("experiment");
+                                                saved.setMlFlowId((String) exp.get("experiment_id"));
+                                                saved.setMlflow_artifactLocation((String) exp.get("artifact_location"));
+                                                saved.setMlflowLifecycleStage((String) exp.get("lifecycle_stage"));
+                                            }
 
-                                                // MLflow 응답 필드 반영
-                                                if (exp.containsKey("experiment_id")) {
-                                                    saved.setMlFlowId((String) exp.get("experiment_id"));
-                                                }
+                                            // DB 저장은 외부 호출이 모두 성공한 이후
+                                            ExperimentsEntity finalSaved = experimentsService.save(saved);
 
-                                                if (exp.containsKey("artifact_location")) {
-                                                    saved.setMlflow_artifactLocation((String) exp.get("artifact_location"));
-                                                }
-                                                if (exp.containsKey("lifecycle_stage")) {
-                                                    saved.setMlflowLifecycleStage((String) exp.get("lifecycle_stage"));
-                                                }
-                                                if (exp.containsKey("created_at")) {
-                                                    // created_at은 timestamp(ms)로 올 수도 있으므로 Instant 변환
-                                                    Object createdAtObj = exp.get("created_at");
-                                                    Instant createdAtInstant = null;
-                                                    if (createdAtObj instanceof Number) {
-                                                        createdAtInstant = Instant.ofEpochMilli(((Number) createdAtObj).longValue());
-                                                    } else if (createdAtObj instanceof String) {
-                                                        createdAtInstant = Instant.parse((String) createdAtObj);
-                                                    }
-                                                    if (createdAtInstant != null) {
-                                                        saved.setMlflowCreatedAt(
-                                                                createdAtInstant.atZone(ZoneId.of("Asia/Seoul")).toLocalDateTime()
-                                                        );
-                                                    }
-                                                }
-                                            }
-                                            experimentsService.save(saved);
-                                            return Mono.just(ResponseEntity.ok(saved));
+                                            return ResponseEntity.ok(finalSaved);
                                         });
                             });
                 })
                 .doOnError(e -> log.error("Experiment 등록 실패", e));
     }
 
-
     @Operation(summary = "Experiment 수정")
     @PutMapping("/{id}")
     public ResponseEntity<ExperimentsEntity> updateExperiment(