diff --git a/middleware/error_display.js b/middleware/error_display.js
index 0a06861..618b37a 100644
--- a/middleware/error_display.js
+++ b/middleware/error_display.js
@@ -1,3 +1,16 @@
+import { makeResponse } from "../core/utils.js";
+
 export default (err, req, res, next) => {
+	// Check if this is an API/JSON request
+	const isJsonRequest = req.path.startsWith('/api/') ||
+	                      req.xhr || 
+	                      req.headers.accept?.includes('application/json');
+	
+	if (isJsonRequest) {
+		// Return JSON error response
+		return res.json(makeResponse(false, { message: err.message }));
+	}
+	
+	// Return HTML error page for regular requests
 	res.render('system/error.njk', { title: "错误", error_message: err.message });
 }
\ No newline at end of file