Diethanolisopropanolamine(DEIPA)mainly be used in teh cement grinding aid,used to replace Triethanolamine and Triisopropanolamine, has the extremely good grinding effect. With Diethanolisopropanolamine as the core material made of grinding aid in improving their strength of cement for three days at the same time, can improve the strength of 28 days. Under teh condition of strong adaptability early strength is more higher than triethanolamine, but in general, it was only slightly lower than triethanolamine, no doubt, can significantly increase the later strength,generally higher than Triisopropanolamine.