diff --git a/src/main/java/com/dpkj/modules/chs/padchs/dll/PadChsPayDll.java b/src/main/java/com/dpkj/modules/chs/padchs/dll/PadChsPayDll.java
index 50d1a9a..24e4712 100644
--- a/src/main/java/com/dpkj/modules/chs/padchs/dll/PadChsPayDll.java
+++ b/src/main/java/com/dpkj/modules/chs/padchs/dll/PadChsPayDll.java
@@ -21,7 +21,7 @@ public class PadChsPayDll {
      */
     public static EcDll instance() throws DllRegistrationException {
         try {
-            EcDll dll = Native.load("NationECCode.dll", EcDll.class);
+            EcDll dll = Native.load("NationECCode", EcDll.class);
 
             // 加载动态库
             /*Native.load("libeay32", EcDll.class);