diff --git a/src/main/java/run/halo/app/controller/admin/api/SheetCommentController.java b/src/main/java/run/halo/app/controller/admin/api/SheetCommentController.java
new file mode 100644
index 000000000..d50abe9b9
--- /dev/null
+++ b/src/main/java/run/halo/app/controller/admin/api/SheetCommentController.java
@@ -0,0 +1,33 @@
+package run.halo.app.controller.admin.api;
+
+import io.swagger.annotations.ApiOperation;
+import org.springframework.web.bind.annotation.PostMapping;
+import org.springframework.web.bind.annotation.RequestBody;
+import org.springframework.web.bind.annotation.RequestMapping;
+import org.springframework.web.bind.annotation.RestController;
+import run.halo.app.model.dto.BaseCommentDTO;
+import run.halo.app.model.entity.SheetComment;
+import run.halo.app.model.params.SheetCommentParam;
+import run.halo.app.service.SheetCommentService;
+
+/**
+ * @author johnniang
+ * @date 19-4-25
+ */
+@RestController
+@RequestMapping("/api/admin/sheets/comments")
+public class SheetCommentController {
+
+    private final SheetCommentService sheetCommentService;
+
+    public SheetCommentController(SheetCommentService sheetCommentService) {
+        this.sheetCommentService = sheetCommentService;
+    }
+
+    @PostMapping
+    @ApiOperation("Creates a comment (new or reply)")
+    public BaseCommentDTO createBy(@RequestBody SheetCommentParam commentParam) {
+        SheetComment createdComment = sheetCommentService.createBy(commentParam);
+        return sheetCommentService.convertTo(createdComment);
+    }
+}
diff --git a/src/main/java/run/halo/app/model/params/SheetCommentParam.java b/src/main/java/run/halo/app/model/params/SheetCommentParam.java
new file mode 100644
index 000000000..109fa64e1
--- /dev/null
+++ b/src/main/java/run/halo/app/model/params/SheetCommentParam.java
@@ -0,0 +1,19 @@
+package run.halo.app.model.params;
+
+import lombok.Data;
+import lombok.EqualsAndHashCode;
+import lombok.ToString;
+import run.halo.app.model.entity.SheetComment;
+
+/**
+ * Sheet comment param.
+ *
+ * @author johnniang
+ * @date 19-4-25
+ */
+@Data
+@ToString(callSuper = true)
+@EqualsAndHashCode(callSuper = true)
+public class SheetCommentParam extends BaseCommentParam<SheetComment> {
+
+}