This paper aims to study and analyze the innovative application of traditional costumes of the Huarui Tibetan people in the Hexi Corridor to contemporary parent-child clothing design. Through systematically extracting, analyzing, reorganizing and redesigning the patterns and colors of Huarui Tibetan costumes, they are applied to contemporary parent-child clothing design. With the rapid growth of the children’hgs clothing economy, the diversification of contemporary parent-child clothing design provides consumers with more choices. Integrating the classic patterns and color system of traditional Huarui Tibetan costumes into contemporary parent-child clothing design can not only greatly enhance the national connotation, innovative expression and style diversity of parent-child clothing, but also effectively inherit and sustainably develop Huarui Tibetan culture in contemporary life, so as to realize the creative transformation and innovative regeneration of traditional culture in modern life scenarios.