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+name: Mirror modification/removal request / 镜像修改/删除请求
+description: Request a change to existing mirror repository / 请求对已有的镜像仓库做修改
+labels:
+  - modify
+body:
+  - type: markdown
+    id: introduction
+    attributes:
+      value: |
+        欢迎向 USTC Mirror 提交对已有的镜像仓库的修改请求。如果你希望 USTC 修改已有的镜像同步配置，或移除某个镜像，请按以下模板填写。
+        If you want to request USTC to modify or remove an existing mirror repository, please submit your issue using the following template.
+  - type: checkboxes
+    id: prerequisites
+    attributes:
+      label: 先决条件 (Prerequisites)
+      options:
+        - label: |
+            我已确认该事宜从未在 [其他 issues](https://github.com/ustclug/mirrorrequest/issues) 中讨论过。  
+            I have checked that my proposal has not been discussed in [other issues](https://github.com/ustclug/mirrorrequest/issues).
+          required: true
+        - label: | 
+            我已仔细阅读 [请求新镜像前必读](https://github.com/ustclug/mirrorrequest/issues/350)。  
+            I have CAREFULLY read the [mirroring rules](https://github.com/ustclug/mirrorrequest/issues/350).
+          required: true
+  - type: textarea
+    id: description
+    attributes:
+      label: 修改或删除的原因 (Reasons of the modification or removal)
+    validations:
+      required: true
+  - type: textarea
+    id: upstream
+    attributes:
+      label: 配置方法 (Configuration method)
+    validations:
+      required: true
+  - type: input
+    id: mirror_size
+    attributes:
+      label: 修改后的镜像大小 (Mirror size after modification)
+    validations:
+      required: false
+  - type: textarea
+    id: notes
+    attributes:
+      label: 备注 (Note)
+    validations:
+      required: false