Aiming at the permanent pollution of the environment caused by F ion and Cr ion in the cleaning residue of the traditional stainless steel cleaning agent used in the cleaning of stainless steel mesh, and the environmental problems of "excessive cleaning", an experimental study on the special cleaning agent for stainless steel mesh was carried out. By analyzing the type of dirt on the surface of stainless steel mesh, the special cleaning agent formula of environmental protection stainless steel mesh was designed. The experimental results show that the screen cleaned by different concentrations is bright, smooth  and non-fouling, and the stainless steel wire surface is smooth through observalion, with a microscope, and the cleaning waste liquid reaches the industrial water pollutant discharge standard of GB15580-2011 phosphate fertilizer.