In fashion design, especially in competition, the proper use of Thangka art can create works with unique visual effect and cultural connotation.This article elaborates on how to organically integrate Thangka art with costume effect pictures, sample clothing production, material selection, and accessory matching in the clothing design process. Through continuous exploration,designers can continuously bring forth new ideas on the basis of keeping the original cultural heritage of national costumes,endowing Thangka with a new sense of fashion and modernity,to achieve the display and inheritance of ethnic cultural costumes on the stage of the competition.