Visual numerical simulations and experiments of laser peen forming on stainless SUS304 sheet metal are done. Based on the finite element analysis software ABAQUS/CAE, the conversion model during laser peen forming of laser shock wave loading is founded, by which the pulsed laser energy is converted to shock wave pressure. The tracks controlling of sheet metal deforming by pulsed laser continuous peening is solved with user subprogram. The dynamic deforming process of sheet metal by laser peening is visualized. With the above model, the micro plastic fluid process of the sheet metal after pulsed laser peening is analyzed, and the variation of surface micro-topography is studied.