Surface modeling method is one of the research emphases all the time, and what it focuses on is the denotation, design, display, and analysis of surface under the environment of computer graphics system. Subdivision is one method to denote surface, a branch of the research emphases of surface modeling. Prom the metaphase and anaphase of 70's in the 20th century, with the development of subdivision theories and the expansion of application fields, Subdivision modeling methods have been put into wider applica...