In intelligent pattern design, relationship between human body Fig. characterestics and garment pattern structure should be established. In this paper, various female bodies of standard, convex stomach, convex hip, X style legs and O style legs respectively were chosen as objects, intelligent paper pattern design system based on body Fig. was established by carrying out intelligent creation of standard pattern design and special pattern revision based on nature semantic driving by using parameter designing principle of Fig. feature. The system adopted a type of hierarchical tree structure which fully considering optimization of multi-functions. Operators just need to input measurement data of human body and select or setup body Fig. following system prompt. And then paper pattern can be created and modified automatically according to the data and selection of operators. Operators can also change design by re-evaluating parameters to form intelligent garment PCAD so as to provide research basis of intelligent female trousers pattern design system.