diff --git a/src/main/java/com/kamco/cd/training/train/service/DockerTrainService.java b/src/main/java/com/kamco/cd/training/train/service/DockerTrainService.java
index 4f61ab2..b1c029b 100644
--- a/src/main/java/com/kamco/cd/training/train/service/DockerTrainService.java
+++ b/src/main/java/com/kamco/cd/training/train/service/DockerTrainService.java
@@ -7,6 +7,8 @@ import com.kamco.cd.training.train.dto.TrainRunResult;
 import java.io.BufferedReader;
 import java.io.InputStreamReader;
 import java.nio.charset.StandardCharsets;
+import java.nio.file.Files;
+import java.nio.file.Path;
 import java.util.ArrayList;
 import java.util.List;
 import java.util.concurrent.TimeUnit;
@@ -339,7 +341,7 @@ public class DockerTrainService {
     }
   }
 
-  public TrainRunResult runEvalSync(EvalRunRequest req, String containerName) throws Exception {
+  public TrainRunResult runEvalSync(String containerName, EvalRunRequest req) throws Exception {
 
     List<String> cmd = buildDockerEvalCommand(containerName, req);
 
@@ -412,7 +414,12 @@ public class DockerTrainService {
     if (uuid == null || uuid.isBlank()) throw new IllegalArgumentException("uuid is required");
     if (epoch == null || epoch <= 0) throw new IllegalArgumentException("epoch must be > 0");
 
-    String modelFile = "best_changed_fscore_epoch_" + epoch + ".pth";
+    String modelFile =
+        String.valueOf(findCheckpoint(Path.of(responseDir + req.getOutputFolder()), epoch));
+
+    if (modelFile == null || modelFile.isBlank()) {
+      throw new IllegalArgumentException("best model file is required");
+    }
 
     List<String> c = new ArrayList<>();
 
@@ -443,4 +450,26 @@ public class DockerTrainService {
 
     return c;
   }
+
+  public Path findCheckpoint(Path dir, int epoch) {
+
+    String bestFileName = String.format("best_changed_fscore_epoch_%d.pth", epoch);
+    String normalFileName = String.format("epoch_%d.pth", epoch);
+
+    Path bestPath = dir.resolve(bestFileName);
+    Path normalPath = dir.resolve(normalFileName);
+
+    // 1. best 파일이 존재하면 그거 사용
+    if (Files.isRegularFile(bestPath)) {
+      return bestPath;
+    }
+
+    // 2. 없으면 일반 epoch 파일 사용
+    if (Files.isRegularFile(normalPath)) {
+      return normalPath;
+    }
+
+    // 둘 다 없으면 null 또는 예외
+    return null;
+  }
 }
diff --git a/src/main/java/com/kamco/cd/training/train/service/TrainJobWorker.java b/src/main/java/com/kamco/cd/training/train/service/TrainJobWorker.java
index 22386a2..4cd1c03 100644
--- a/src/main/java/com/kamco/cd/training/train/service/TrainJobWorker.java
+++ b/src/main/java/com/kamco/cd/training/train/service/TrainJobWorker.java
@@ -80,7 +80,8 @@ public class TrainJobWorker {
         evalReq.setDatasetFolder(datasetFolder);
         evalReq.setOutputFolder(outputFolder);
         log.info("[JOB] selected test epoch={}", epoch);
-        result = dockerTrainService.runEvalSync(evalReq, containerName);
+
+        result = dockerTrainService.runEvalSync(containerName, evalReq);
 
       } else {
         modelTrainMngCoreService.markStep1InProgress(modelId, jobId);