Abstract: In this study, the effects of different amount of slow controlled release fertilizers on yield and benefit of maize were analyzed by conventional fertilizer control. The results showed that compared with the CK, all treatments had certain affects on promoting the growth of maize. With the increase of the amount of slow-release urea, all treatments increased first and then decreased. The highest yield of treatment 3 was 11 785.3 kg/hm^2, compared with the CK by 2 654.0 kg/hm^2.The yield rate was 29.7%, but not significant difference with treatment 2.The net income was higher than that of CK,to deal with the highest net income of treatment 2 and 1 increase of 52.6% and 52.5% compared with the control,and fertilizer ratio decreased with increasing the dosage of urea;treatment 1 was the highest 3.7 ∶1.0, saving fertilizer 530 kg/hm^2, and compared with CK income 3 492 yuan/hm^2 had the largest environmental benefits.