At present, the intelligent design of clothing patterns still needs to rely on the experience of the pattern
maker, and it cannot liberate the pattern maker from the complicated design work. The efficiency and
flexibility of the design of clothing patterns are not high. In order to realize the intelligent pattern design
of design knowledge automation, a directed graph method is proposed to construct a clothing pattern
design model, and the model is used to analyze the clothing pattern. In view of the characteristics of
clothing pattern design, the directed graph method is used to record the pattern design process, and the
model of clothing pattern design is constructed. The model is accurately analyzed by decomposing the
original model of clothing pattern design into sub-models of each structural line. Application examples
verify the feasibility of constructing a pattern design model and application by the directed graph method.
The research results show that the pattern design model can clearly express the pattern design process
and the valuable experience involved, and can accurately and quickly analyze the pattern. This research
can provide a way to extract, collect, process, share and reuse pattern design knowledge for intelligent
clothing design, and improve the efficiency of clothing pattern design.