Abstract: A 3-year experiment was conducted under the all-film covering with double ridge-furrow sowing technology to study the interactive effects of nitrogen application rate on corn yield, N use efficiency and soil nitrate spatial distribution in northern dry land terraced fields. The results indicated that with the increase of nitrogen application rate, grain yield showed an up and down trend. Across three-year, when the nitrogen application rate was 180 kg·hm^-2~225 kg·hm^-2, the average grain yield, plant nitrogen uptake, seasonal N fertilizer utilization rate, accumulated N fertilizer utilization rate, accumulated N fertilizer agronomic utilization rate, accumulated nitrogen partial factor productivity,and N fertilizer pure profit were:12 213 kg·hm^-2~12 321 kg·hm^-2,183 kg·hm^-2~201.3 kg·hm^-2,23.4%~25.9%, 45.6%~51.3%,20.4 kg·kg^-1~24.9 kg·kg^-1,54.8 kg·kg^-1~67.9 kg·kg^-1,2 562 yuan·hm^-2~3 363 yuan·hm^-2 respectively. 200 kg·hm^-2 nitrogen application rate in continuous corn cultivation increased nitrogen use efficiency, and achieved nitrogen equilibrium with maximum seasonal N fertilizer utilization rate, which could effectively controllthe risk of soil nitrate accumulation in 0~2 m soil profile, and achieved the goal of high corn yield and environmental protection.