diff --git a/RepositoryMinerForGit/src/main/java/Test.java b/RepositoryMinerForGit/src/main/java/Test.java
index 581c248..792a953 100644
--- a/RepositoryMinerForGit/src/main/java/Test.java
+++ b/RepositoryMinerForGit/src/main/java/Test.java
@@ -1,4 +1,5 @@
 import java.io.File;
+import java.nio.file.Path;
 import java.io.IOException;
 import java.util.List;
 
@@ -41,7 +42,18 @@
 			if( git != null ){
 				//. git clone
 				File project = new File( "./project" );
-				git.cloneRepository().setURI( amaryllis_server ).setDirectory( project ).call();
+
+				String filePath = "./project";
+
+				// フォルダの存在を確認する
+				if (project.exists()) {
+					System.out.println("projectフォルダが存在します");
+					delete(filePath);
+				} else {
+					System.out.println("projectフォルダが存在しません");
+				}
+
+				git.cloneRepository().setURI( acanthus_client ).setDirectory( project ).call();
 			}
 			
 			PlotWalk revWalk = new PlotWalk(repo);
@@ -102,4 +114,18 @@
 
 	}
 
+	public static void delete(String path) {
+        File filePath = new File(path);
+        String[] list = filePath.list();
+        for(String file : list) {
+            File f = new File(path + File.separator + file);
+            if(f.isDirectory()) {
+                delete(path + File.separator + file);
+            }else {
+                f.delete();
+            }
+        }
+        filePath.delete();
+    }
+
 }