A kind of cyanuric chloride derivatives with sale inhibition effect was prepared by cyanuric chloride and glutamic acid. The effects of the reactant ratio，the reaction time , the temperature used on the reaction were discussed. The structure was characterized by infrared spectrum. The results of scale inhibition experiment of product which were used as scale inhibitors show that the type of scale inhibitor has good scale inhibition on calcium carbonate. the study on the change of crystal form of the scale inhibitor calcium carbonate was carried out by means of scanning electron microscope analysis, the results thereof show that the crystal form of calcium carbonate can be completely distorted to form a vaterite crystal to realize the purpose of scale inhibition through 2,4,6-tri[(4,- carboxyl-1,-carboxypropyl)amino]-1,3,5-trizine.