This work focuses on fractal analysis for fracture process of polymer materials in theoric model and experimental ditermination. A series of theoric fractal model based on fracutred surface for fracutre process of polymer materials are founded, and the fractal dimension of fractured surface wa obtained under various break mechanism including crack in shear bands, crack development in stonely wave, crack cross, break in brittle, fractured pocess for the rigid filtered polymers and self-reinforced liquid crystal thermotes. These results retlected that the bigger the fractal dimensiion of the fractured surface, the higher the toughenss of polymer materials. According to Griffith strength, the mechanical properties of polymers increased lindarly with the rise of fractal dimension value.