Abstract: In the framework of rate dependent crystal plasticity theory,two polycrystal models were incorporated into finite element code ABAQUS to realize the uniaxial compression simulation of pure Al by crystal plasticity finite element method (CPFEM).The initial crystal orientations from electron backscattered diffraction (EBSD) were input into UMAT directly.Mechanical response and texture development of 1050 pure Al during uniaxial compression were predicted.It shows mechanical response results of modeling and experiment have reasonable agreement and some little deviation.With the strain increasing compression fiber texture (〈110〉 fiber texture) tends to sharper,predictions of texture development are well accord with the EBSD measured results.