The door in Chinese ancient architecture was regarded as a face of a building group. The decoration made by the ancients on the door is the most beautiful in the entire building. Whether or not a building group has a door leaf, as a place for people to enter and leave the building, the door frame is a must. Thus the door frame is an inevitable ubiquity of the architectural community. According to different regions and its different materials, the decorative methods and decorative themes of their door frames have their own characteristics.

• Fan Songhua(Art College of Nantong University)