Abstract: In contrast to traditional fertilizing, nitrate nitrogen content in soil and yield factors of wheat-maize applied slow/controlled release fertilizer with different amounts and rates in North China was analyzed. The results indicated that nitrate nitrogen content still maintain high level during late growing period, and the yield traits such as panicle number, 1000-grain weight as well as actual yield keep high level if fertilized according to recommendation at the ratio of 6∶4∶2 at pre-sowing, reviving and jointing respectively (the treatment named as 100%UD). The formulated slow/controlled release fertilizer (CSR) showed lower nitrate nitrogen content in soil, but had no influence on yields compared with 100%UD. CSR showed a positive impact on maize production, e.g. increased fertilizer use efficiency, decreased bare top length. The yield of 80%SCR is 18.3% higher than that of 100%UD. Crop could absorb nutrient timely and fully with the application of SCR because the nutrient is released slowly and avoided of the loss risk by leaching. On the whole, further study on how to optimize SCR fertilization distribution during the wheat and maize growing season was needed for the purpose of increasing economic and environmental benefits simultaneously.