diff --git a/app/Libraries/MyStorage/FileLibrary.php b/app/Libraries/MyStorage/FileLibrary.php
index cf7e9f7..6cb0b75 100644
--- a/app/Libraries/MyStorage/FileLibrary.php
+++ b/app/Libraries/MyStorage/FileLibrary.php
@@ -46,9 +46,8 @@ class FileLibrary extends MyStorageLibrary
         $this->makeDirectory($fullPath);
         $saveFilePath = $fullPath . DIRECTORY_SEPARATOR . $this->getOriginName();
         if (file_exists($saveFilePath)) {
-            $fileInfos = pathinfo($saveFilePath, PATHINFO_ALL);
-            $saveFile = base64_encode($fileInfos['filename']) .  "." . $fileInfos['extension'];
-            $saveFilePath = $fullPath . DIRECTORY_SEPARATOR . $this->getOriginName();
+            $saveFile = $this->getUniqueFilename($fullPath, $this->getOriginName());
+            $saveFilePath = $fullPath . DIRECTORY_SEPARATOR . $saveFile;
             log_message("notice", __FUNCTION__ . "파일명 변경 : 원본파일 {$this->getOriginName()}->저장파일 {$saveFile}");
             $this->setOriginName($saveFile);
         }
diff --git a/app/Traits/FileTrait.php b/app/Traits/FileTrait.php
index 5f3ba34..d575ff1 100644
--- a/app/Traits/FileTrait.php
+++ b/app/Traits/FileTrait.php
@@ -44,4 +44,19 @@ trait FileTrait
         }
         return $files;
     }
+
+    final public function getUniqueFilename($path, $file_name)
+    {
+        $fileExtension = pathinfo($file_name, PATHINFO_EXTENSION);
+        $fileBaseName = pathinfo($file_name, PATHINFO_FILENAME);
+        $newFilename = $file_name;
+        $counter = 1;
+        // 중복된 파일명이 존재하는지 확인
+        while (file_exists($path . DIRECTORY_SEPARATOR . $newFilename)) {
+            // 중복된 파일명이 존재하면 숫자를 추가하여 새로운 파일명 생성
+            $newFilename = $fileBaseName . '_' . $counter . '.' . $fileExtension;
+            $counter++;
+        }
+        return $newFilename;
+    }
 }