This study aims at achieving good quality, high yield, fertilizer saving and benefit increasing of summer maize in Henan Province. A field experiment was designed with three treatments and three repeats. The growth development and production cost were recorded in detail. The real yields of the test plot were used to analyze the yield and benefit of different fertilizer levels, and explore the way of chemical fertilizer reduction. The results showed that during 6-9 leaf stage, spraying"carbon absorbing polyglutamic acid organic water soluble fertilizer"promoted the nutrients absorption and utilization, improved the utilization rate of fertilizer and enhanced the resistance. The maize showed stout stem, well developed root, matured live stem, decreasing bald tip and no dry failure. This fertilizer improved kernels per spike and thousand kernel weight, the production and efficiency increased obviously. Under the conventional fertilizer level, the yield increased by 11.9%, and the benefit increased by 1325.3 yuan/hm2. Under the 70%conventional fertilizer level, the yield increased by 5.3%and the benefit increased by 835.8 yuan/hm2.