diff --git a/hz-pm-api/src/main/java/com/hz/pm/api/common/enumeration/FileOrigin.java b/hz-pm-api/src/main/java/com/hz/pm/api/common/enumeration/FileOrigin.java
new file mode 100644
index 0000000..dc12ed8
--- /dev/null
+++ b/hz-pm-api/src/main/java/com/hz/pm/api/common/enumeration/FileOrigin.java
@@ -0,0 +1,43 @@
+package com.hz.pm.api.common.enumeration;
+
+import cn.hutool.core.util.StrUtil;
+import com.ningdatech.basic.exception.BizException;
+import lombok.AllArgsConstructor;
+import lombok.Getter;
+
+import java.util.Arrays;
+import java.util.Optional;
+
+/**
+ * <p>
+ * FileOrigin
+ * </p>
+ *
+ * @author WendyYang
+ * @since 21:11 2024/11/18
+ */
+@Getter
+@AllArgsConstructor
+public enum FileOrigin {
+
+    MH("信产文件", 1),
+
+    OSS("OSS存储文件", 2);
+
+    private final String val;
+    private final Integer code;
+
+
+    public static String getVal(Integer code) {
+        return optGet(code).flatMap(t -> Optional.of(t.val)).orElse(StrUtil.EMPTY);
+    }
+
+    public static Optional<FileOrigin> optGet(Integer code) {
+        return Arrays.stream(values()).filter(item -> item.code.equals(code)).findFirst();
+    }
+
+    public static FileOrigin getNoNull(Integer code) {
+        return optGet(code).orElseThrow(() -> BizException.wrap("文件来源无效：%s", code));
+    }
+
+}
diff --git a/hz-pm-api/src/main/java/com/hz/pm/api/external/FilePreviewClient.java b/hz-pm-api/src/main/java/com/hz/pm/api/external/FilePreviewClient.java
index d20b7d5..57fd9ad 100644
--- a/hz-pm-api/src/main/java/com/hz/pm/api/external/FilePreviewClient.java
+++ b/hz-pm-api/src/main/java/com/hz/pm/api/external/FilePreviewClient.java
@@ -1,6 +1,7 @@
 package com.hz.pm.api.external;
 
-import cn.hutool.http.useragent.UserAgentUtil;
+import cn.hutool.core.util.NumberUtil;
+import com.hz.pm.api.external.model.dto.MhFileInfoDTO;
 import com.hz.pm.api.meeting.entity.config.WebProps;
 import com.ningdatech.basic.exception.BizException;
 import com.ningdatech.file.entity.File;
@@ -13,6 +14,7 @@ import org.springframework.stereotype.Component;
 
 import javax.servlet.http.HttpServletRequest;
 import javax.servlet.http.HttpServletResponse;
+import java.util.List;
 
 /**
  * <p>
@@ -35,26 +37,40 @@ public class FilePreviewClient {
     private String mhFilePreviewPrivateUrl;
 
     private final FileService fileService;
+    private final MhFileClient mhFileClient;
 
     private static final String FILE_DOWN_NO_AUTH_URL = "/api/v1/file/preview/anonymous/down/";
 
+    private static final String MH_DOWN_FILE_URL = "/api/v1/mh/anonymous/file/download/";
+
+
     //==================================================================================================================
 
     private static final String PREVIEW_PATH_FMT = "%s/public/risen/core/resrc/view/pdf_view.html.do?strMap.remote_url=%s&strMap.ext=%s";
 
-    public String getFilePreviewUrl(Long fileId, HttpServletRequest request) {
+    public String getFilePreviewUrl(String fileId, HttpServletRequest request) {
         String serverName = request.getServerName();
         log.info("serverName:{}", serverName);
+        StringBuilder fileDownUrl = new StringBuilder();
         if (serverName.contains("weixin") || serverName.contains("10.54.38.13")) {
             // 浙政钉访问需要转换为互联网可访问的地址
-            String fileDownUrl = WebProps.zzdApiUrl + FILE_DOWN_NO_AUTH_URL + fileId;
-            File file = fileService.getById(fileId);
-            return String.format(PREVIEW_PATH_FMT, mhFilePreviewPublicUrl, fileDownUrl, file.getSuffix());
+            fileDownUrl.append(WebProps.zzdApiUrl);
+        } else {
+            fileDownUrl.append(WebProps.apiUrl);
+        }
+        String fileSuffix;
+        // 信产文件ID为字符串、当前系统文件ID为数字
+        if (!NumberUtil.isLong(fileId)) {
+            List<MhFileInfoDTO> fileInfos = mhFileClient.listFileInfo(fileId);
+            MhFileInfoDTO mhFileInfo = fileInfos.get(0);
+            fileSuffix = mhFileInfo.getFileSuffix();
+            fileDownUrl.append(MH_DOWN_FILE_URL).append(fileId);
         } else {
-            String fileDownUrl = WebProps.apiUrl + FILE_DOWN_NO_AUTH_URL + fileId;
+            fileDownUrl.append(FILE_DOWN_NO_AUTH_URL).append(fileId);
             File file = fileService.getById(fileId);
-            return String.format(PREVIEW_PATH_FMT, mhFilePreviewPrivateUrl, fileDownUrl, file.getSuffix());
+            fileSuffix = file.getSuffix();
         }
+        return String.format(PREVIEW_PATH_FMT, mhFilePreviewPrivateUrl, fileDownUrl, fileSuffix);
     }
 
     public void downloadFile(Long fileId, HttpServletResponse response) {
diff --git a/hz-pm-api/src/main/java/com/hz/pm/api/external/controller/FilePreviewController.java b/hz-pm-api/src/main/java/com/hz/pm/api/external/controller/FilePreviewController.java
index a3d9883..c9fb6b5 100644
--- a/hz-pm-api/src/main/java/com/hz/pm/api/external/controller/FilePreviewController.java
+++ b/hz-pm-api/src/main/java/com/hz/pm/api/external/controller/FilePreviewController.java
@@ -30,7 +30,7 @@ public class FilePreviewController {
 
     @ApiOperation("获取文件的预览地址")
     @GetMapping("/getFilePreviewUrl/{fileId}")
-    public String getFilePreviewUrl(@PathVariable Long fileId, HttpServletRequest request) {
+    public String getFilePreviewUrl(@PathVariable String fileId, HttpServletRequest request) {
         return filePreviewClient.getFilePreviewUrl(fileId, request);
     }
 
diff --git a/hz-pm-api/src/main/java/com/hz/pm/api/external/controller/MhApiController.java b/hz-pm-api/src/main/java/com/hz/pm/api/external/controller/MhApiController.java
index 7cadc89..bcda037 100644
--- a/hz-pm-api/src/main/java/com/hz/pm/api/external/controller/MhApiController.java
+++ b/hz-pm-api/src/main/java/com/hz/pm/api/external/controller/MhApiController.java
@@ -32,14 +32,13 @@ public class MhApiController {
     private final MhApiClient mhApiClient;
     private final MhFileClient mhFileClient;
 
-
     @GetMapping("/dict/listByType/{dictType}")
     @ApiOperation("根据字典类型获取字典信息")
     public List<MhDictDTO> dictListByType(@PathVariable MhDictType dictType) {
         return mhApiClient.dictListByType(dictType);
     }
 
-    @GetMapping("/file/download/{fileId}")
+    @GetMapping({"/anonymous/file/download/{fileId}", "/file/download/{fileId}"})
     @WebLog("下载信创平台文件")
     @ApiOperation("下载信创平台文件")
     public void download(@PathVariable String fileId, HttpServletResponse response) {