Stainless steel surface hydrophilic treatment method

The invention relates to the technical field of metal surface treatment, and discloses a stainless steel surface hydrophilic treatment method. The stainless steel surface hydrophilic treatment methodcomprises the following steps that (1) an agent A is evenly coated on the surface of a steel plate, and a standing reaction is made for 10-30 minutes; (2) an agent B is evenly coated on the surface ofthe stainless steel, and a standing reaction is made for 10-30 minutes; and (3) the surface of the stainless steel is rinsed with water, and the water is dried. The agent A includes one or more of phytic acid, ethylene diamine tetraacetic acid, hydroxyethyl ethylenediamine triacetic acid, dihydroxyethyl glycine, diethylenetriamine pentaacetic acid, nitrilotriacetic acid, iminodisuccinic acid andhydroxy ethyl diphosphonic acid; and the agent B is a ferric ion solution. The stainless steel surface hydrophilic treatment method can solve the problems that in the prior art, when the surface of the stainless steel is subjec