The traditional Chinese attire is called "Laodang Lan Shan", which carries significant historical and cultural significance.

In Chinese opera, Laodang refers to an important role type that represents older female characters.

The blue shirt is one of the traditional costumes for Laodang roles, with its design and color symbolizing stability, solemnity, and nobility.

By wearing this outfit, actors can better portray the image and temperament of Laodang characters, allowing audiences to gain a deeper understanding and appreciation of the cultural connotations represented by this role.