diff --git a/hdfswriter/src/main/java/com/alibaba/datax/plugin/writer/hdfswriter/HdfsWriter.java b/hdfswriter/src/main/java/com/alibaba/datax/plugin/writer/hdfswriter/HdfsWriter.java
index 853613a2..513b67ff 100644
--- a/hdfswriter/src/main/java/com/alibaba/datax/plugin/writer/hdfswriter/HdfsWriter.java
+++ b/hdfswriter/src/main/java/com/alibaba/datax/plugin/writer/hdfswriter/HdfsWriter.java
@@ -309,7 +309,9 @@ public class HdfsWriter extends Writer {
             }else if("/".equals(userPath)){
                 tmpFilePath = String.format("%s__%s%s", userPath, tmpSuffix, IOUtils.DIR_SEPARATOR);
             }else{
-                tmpFilePath = String.format("%s__%s%s", userPath.substring(0,userPath.length()-1), tmpSuffix, IOUtils.DIR_SEPARATOR);
+//                tmpFilePath = String.format("%s__%s%s", userPath.substring(0,userPath.length()-1), tmpSuffix, IOUtils.DIR_SEPARATOR);
+                // 适配window系统目录拼接
+                tmpFilePath = String.format("%s__%s%s", userPath, tmpSuffix, IOUtils.DIR_SEPARATOR_UNIX);
             }
             while(hdfsHelper.isPathexists(tmpFilePath)){
                 tmpSuffix = UUID.randomUUID().toString().replace('-', '_');
@@ -318,7 +320,9 @@ public class HdfsWriter extends Writer {
                 }else if("/".equals(userPath)){
                     tmpFilePath = String.format("%s__%s%s", userPath, tmpSuffix, IOUtils.DIR_SEPARATOR);
                 }else{
-                    tmpFilePath = String.format("%s__%s%s", userPath.substring(0,userPath.length()-1), tmpSuffix, IOUtils.DIR_SEPARATOR);
+//                    tmpFilePath = String.format("%s__%s%s", userPath.substring(0,userPath.length()-1), tmpSuffix, IOUtils.DIR_SEPARATOR);
+                    // 适配window系统目录拼接
+                    tmpFilePath = String.format("%s__%s%s", userPath, tmpSuffix, IOUtils.DIR_SEPARATOR_UNIX);
                 }
             }
             return tmpFilePath;