Abstract:The inner eaves of Tian 'anmen are painted with dragon Tendril pattern. The basic composition method of dragon Tendril pattern also adopts the general rules of other Qing style color pattern "divided into middle half" and "divided into three part". Different from other dragons pattern, the main parts are central portion of painted beam , intermediate portion of painted beam and box heart, which are decorated with only "dragon" and "tendril " .