diff --git a/lib/v2/lsnu/jiaowc/tzgg.js b/lib/v2/lsnu/jiaowc/tzgg.js
index 5589bb97a6..c22c16421f 100644
--- a/lib/v2/lsnu/jiaowc/tzgg.js
+++ b/lib/v2/lsnu/jiaowc/tzgg.js
@@ -2,9 +2,12 @@ const got = require('@/utils/got');
 const cheerio = require('cheerio');
 
 module.exports = async (ctx) => {
+    const category = ctx.params.category;
+    const url = category ? `http://jiaowc.lsnu.edu.cn/tzgg/${category}.htm` : 'http://jiaowc.lsnu.edu.cn/tzgg.htm';
+
     const response = await got({
         method: 'get',
-        url: 'http://jiaowc.lsnu.edu.cn/tzgg.htm',
+        url,
     });
 
     const data = response.data;
@@ -19,28 +22,24 @@ module.exports = async (ctx) => {
             const link = 'http://jiaowc.lsnu.edu.cn/' + $('a').attr('href');
             const date = $('td[width="80"]').text();
 
-            const cache = await ctx.cache.get(link);
-            if (cache) {
-                return JSON.parse(cache);
-            }
+            const single = await ctx.cache.tryGet(link, async () => {
+                const response = await got({
+                    method: 'get',
+                    url: link,
+                });
 
-            const response = await got({
-                method: 'get',
-                url: link,
+                const articleData = response.data;
+                const article$ = cheerio.load(articleData);
+                const description = article$('.v_news_content').html();
+
+                return {
+                    title,
+                    link,
+                    description,
+                    pubDate: new Date(date).toUTCString(),
+                };
             });
 
-            const articleData = response.data;
-            const article$ = cheerio.load(articleData);
-            const description = article$('.v_news_content').html();
-
-            const single = {
-                title,
-                link,
-                description,
-                pubDate: new Date(date).toUTCString(),
-            };
-
-            ctx.cache.set(link, JSON.stringify(single));
             return Promise.resolve(single);
         })
     );
diff --git a/lib/v2/lsnu/radar.js b/lib/v2/lsnu/radar.js
index 44a74a42b4..f028fb3495 100644
--- a/lib/v2/lsnu/radar.js
+++ b/lib/v2/lsnu/radar.js
@@ -1,10 +1,10 @@
 module.exports = {
-    'jiaowc.lsnu.edu.cn': {
-        _name: '乐山师范学院教学部',
+    'lsnu.edu.cn': {
+        _name: '乐山师范学院',
         '.': [
             {
-                title: '通知公告',
-                docs: 'https://docs.rsshub.app/',
+                title: '教学部通知公告',
+                docs: 'https://docs.rsshub.app/university.html#le-shan-shi-fan-xue-yuan',
                 source: ['/'],
                 target: '/lsnu/jiaowc/tzgg',
             },
diff --git a/lib/v2/lsnu/router.js b/lib/v2/lsnu/router.js
index d2f953bf1e..1dbd6b5620 100644
--- a/lib/v2/lsnu/router.js
+++ b/lib/v2/lsnu/router.js
@@ -1,3 +1,3 @@
 module.exports = (router) => {
-    router.get('/jiaowc/tzgg', require('./jiaowc/tzgg'));
+    router.get('/jiaowc/tzgg/:category?', require('./jiaowc/tzgg'));
 };
diff --git a/website/docs/routes/university.md b/website/docs/routes/university.md
index 486687a0be..8e09e834c3 100644
--- a/website/docs/routes/university.md
+++ b/website/docs/routes/university.md
@@ -2013,7 +2013,15 @@ jsjxy.hbut.edu.cn 证书链不全，自建 RSSHub 可设置环境变量 NODE_TLS
 
 ### 教学部通知公告 {#le-shan-shi-fan-xue-yuan-jiao-xue-bu-tong-zhi-gong-gao}
 
-<Route author="nyaShine" example="/lsnu/jiaowc/tzgg" path="/lsnu/jiaowc/tzgg" radar="1" />
+<Route author="nyaShine" example="/lsnu/jiaowc/tzgg" path="/lsnu/jiaowc/tzgg/:category?" paramsDesc={['分类名']} radar="1" />
+
+category 列表：
+
+| 实践教学科 | 教育运行科 | 教研教改科 | 学籍管理科 | 考试科 | 教材建设管理科 |
+| -------- | -------- | -------- | -------- | -------- | -------- |
+| sjjxk     | jxyxk     | jyjgk     | xjglk     | ksk     | jcjsglk     |
+
+</Route>
 
 ## 辽宁工程技术大学 {#liao-ning-gong-cheng-ji-shu-da-xue}