diff --git a/backend/portal-service/src/main/java/org/egovframe/cloud/portalservice/utils/FileStorageUtils.java b/backend/portal-service/src/main/java/org/egovframe/cloud/portalservice/utils/FileStorageUtils.java
index ad2c50e..fd3c695 100644
--- a/backend/portal-service/src/main/java/org/egovframe/cloud/portalservice/utils/FileStorageUtils.java
+++ b/backend/portal-service/src/main/java/org/egovframe/cloud/portalservice/utils/FileStorageUtils.java
@@ -51,10 +51,16 @@ public class FileStorageUtils implements StorageUtils {
     private final Path fileStorageLocation;
     private final Environment environment;
     private final MessageUtil messageUtil;
-
+    private static final String FILE_SEPARATOR = File.separator;
+    
     public FileStorageUtils(Environment environment, MessageUtil messageUtil) {
         this.environment = environment;
-        this.fileStorageLocation = Paths.get(environment.getProperty("file.directory")).toAbsolutePath().normalize();
+        String envFileDir = "";
+        envFileDir = environment.getProperty("file.directory");
+        if(FILE_SEPARATOR.equals("\\")) {//윈도우기반 자바시스템일 때 경로 에러방지
+        	envFileDir = envFileDir.replaceAll("/", "\\\\");
+        }
+        this.fileStorageLocation = Paths.get(envFileDir).toAbsolutePath().normalize();
         this.messageUtil = messageUtil;
     }