Abstract: Abstract: This article classify mechanical and manual pleats from the perspective of morphological characteristics, expound on texture characteristics and design features of various pleats and study?in depth the design principles and forms of mechanical and manual pleats in the design process through case analysis, emphasizes the combination design of this two kinds of methods into pleats help to enhance the aesthetic of clothing.This paper selected ten products which using H-shaped pleats from Janetwear 2013 spring/summer as the research object,analysis combination design forms of H-shaped pleats and all kinds of manual pleats, as well as the clothing style formed after the combination. Based on the response of the brand's fixed consumer groups as standards to evaluate. The results showed that: the styles of apparel products which using combination design of mechanical and manual pleats become more diversified. It has greater popularity than using only one type of pleating design on apparel products and has market potential and extremely commercial value.

Key words: mechanical pleats, manual pleats, combination design, artistic effect, morphology, style