Environment friendly water-base anti-rusting agent

The invention relates to an environment friendly water-base anti-rusting agent which is characterized in that the preparation method comprises the following steps: mixing, stirring and heating dodec dibasic fatty acid and triethanolamine at a mass ratio of 1:3 in a reaction vessel at the constant temperature of 83-87 DEG C for 2 hours to synthesize a water-soluble amine soap used as an anti-rusting agent monomer; decreasing the temperature of the anti-rusting agent monomer to 80 DEG C or lower, adding water which is 1/4 of the predetermined amount, and stirring and dissolving uniformly; heating the left 3/4 water to 40-45 DEG C, adding sodium tetraborate, sodium carbonate and sodium gluconate slowly in sequence according to the proportion showed in table 1, and stirring to dissolve completely; adding triethanolamine and glycerol to the solution slowly in sequence according to the proportion showed in table 1, adding a liquid formed by mixing the anti-rusting agent monomer with water, and stirring dissolve completely. The main synthesized anti-rusting agent monomer is dissolved in water, and an inhibitor, a film forming agent and additives which can take a synergistic effect are added, so that a uniform, transparent and non-layered liquid without precipitates is formed. The liquid is good in cast-iron and steel component rusting resistance and good in aluminum, aluminum alloy, copper and copper alloy corrosion resistance, can be used for resisting rusting for metal parte interprocess and warehouse storage and has a rusting resisting period of 40-60 day in summer in normal circumstances.