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+## openGauss Community Command Help
+
+All of the projects in openGauss Community are maintained by Bot.
+That means the developpers can comment below every Pull Request or Issue to trigger Bot Commands.
+The Commands incluing as follows:
+
+<table class="command">
+    <thead>
+        <tr>
+            <th>Command</th>
+            <th width="25%">Example</th>
+            <th>Description</th>
+            <th>Who Can Use</th>
+        </tr>
+    </thead>
+    <tbody>
+        <tr>
+            <td>
+                /lgtm [cancel]
+            </td>
+            <td style="white-space:nowrap;">
+                /lgtm
+                <br/>
+                /lgtm cancel
+            </td>
+            <td>
+                Adds or removes the `lgtm` label which is typically used to gate merging.
+            </td>
+            <td>
+                Collaborators on the repository. `/lgtm cancel` can be used additionally by the Pull Request author.
+            </td>
+        </tr>
+        <tr>
+            <td>
+                /approve [cancel]
+            </td>
+            <td style="white-space:nowrap;">
+                /approve
+                <br/>
+                /approve cancel
+            </td>
+            <td>
+                Adds or removes the `approved` label which is typically used to gate merging.
+            </td>
+            <td>
+                Collaborators on the repository.
+            </td>
+        </tr>
+        <tr>
+            <td>
+                /[remove-]kind
+            </td>
+            <td style="white-space:nowrap;">
+                /kind bug
+                <br/>
+                /remove-kind bug
+            </td>
+            <td>
+                Applies or removes a kind label from one of the recognized types of labels.
+                For example, the label is more like `kind/bug`.
+            </td>
+            <td>
+                Anyone can trigger this command on a Pull Request or Issue.
+            </td>
+        </tr>
+        <tr>
+            <td>
+                /[remove-]priority
+            </td>
+            <td style="white-space:nowrap;">
+                /priority high
+                <br/>
+                /remove-priority high
+            </td>
+            <td>
+                Applies or removes a priority label from one of the recognized types of labels.
+                For example, the label is more like `priority/high`.
+            </td>
+            <td>
+                Anyone can trigger this command on a Pull Request or Issue.
+            </td>
+        </tr>
+        <tr>
+            <td>
+                /close
+            </td>
+            <td style="white-space:nowrap;">
+                /close
+            </td>
+            <td>
+                Closes a Pull Request or an Issue.
+            </td>
+            <td>
+                Authors and collaborators on the repository can trigger this command.
+            </td>
+        </tr>
+        <tr>
+            <td>
+                /reopen
+            </td>
+            <td style="white-space:nowrap;">
+                /reopen
+            </td>
+            <td>
+                Reopens an Issue.
+            </td>
+            <td>
+                Authors and collaborators on the repository can trigger this command.
+            </td>
+        </tr>
+        <tr>
+            <td>
+                /assign [[@]...]
+            </td>
+            <td style="white-space:nowrap;">
+                /assign
+                <br/>
+                /assign @opengauss-bot
+            </td>
+            <td>
+                Assigns an assignee to an Issue.
+            </td>
+            <td>
+                Anyone can use this command on an Issue,
+                but the target user must be a member of the org that owns the repository.
+                If no target user is specified, that means this Issue will be assigned to yourself.
+            </td>
+        </tr>
+        <tr>
+            <td>
+                /unassign [[@]...]
+            </td>
+            <td style="white-space:nowrap;">
+                /unassign
+                <br/>
+                /unassign @opengauss-bot
+            </td>
+            <td>
+                UnAssigns an assignee from an Issue.
+            </td>
+            <td>
+                Anyone can use this command on an Issue,
+                but the target user must be a member of the org that owns the repository.
+                If no target user is specified, that means this Issue will be unassigned from yourself.
+            </td>
+        </tr>
+    </tbody>
+</table>
+