A three dimension (3D) Kinetic Monte Carlo coupled multi-body embedded-atom method (KMC-EAM) model has been developed to simulate the CZTS film growth and morphology evolution during electrodeposition. The influences of the deposition factors, including electrolyte concentration, temperature and electrode potential, on film growth were studied. The morphology of different factors were showed. The electrolyte concentration have significant effects, while temperature has little effect on the film growth. The relationship among roughness, electrolyte concentration, temperature and electrode potential were showed. The roughness became bigger as electrode potential increased.