Abstract: Puhua 45 was used to study the effects of different dosages of Jinzhengda controlled-release fertilizer on the main characteristics and yield of peanut. The results showed that the kernel percentage, two-kernel percentage, fruit number per plant and fruit weight per plant were increased when the application of controlled-release fertilizer was 600 kg·hm^-2. The yield of peanut pod and kernels were the highest, they were 10.46% and 12.82% higher than that of non-fertilization treatment, respectively. When comparing with that of compound fertilizer treatment, they increased by 2.13% and 2.23%.