diff --git a/module/category/Category.go b/module/category/Category.go
index 5d26945..3d43075 100644
--- a/module/category/Category.go
+++ b/module/category/Category.go
@@ -17,5 +17,10 @@ type Category struct {
 }
 
 func (c *Category) AfterQuery(session basedboperat.DbTransactionSession) {
+	var children []Category
+	var list basedboperat.List
+	list.Limit = -1
+	session.ListScan(&list, c, &children)
+	c.Children = children
 
 }