In order to improve the surface polishing quality of SUS 304, a laser chemical composite polishing method was proposed based on chemical polishing and laser polishing. SUS 304 was adopted as workpiece being polished by 1064nm laser in purified water and polishing solution, respectively. The influence of laser processing power and scanning times on the surface topography and quality of machined area was analyzed. The bubbles have a damaging effect on the passivation film formed on the surface of stainless steel, resulting in uneven polishing effect and increasing surface roughness. The results show that, laser polishing in polishing solution can significantly improve surface topography while suppressing surface oxidation blackening, and the surface roughness decreases from 0.845μm to 0.181μm. Laser chemical composite polishing can improve the polishing quality of stainless steel and reduce environmental pollution. This study has a great application prospect.