Abstract: Zinc is an indispensable micronutrient for crops. The lack of zinc in soil will affect the yield and quality of potato. In this experiment, the effects of zinc fertilizer and nitrogen fertilizer interaction on the growth and development characteristics and quality of potato were studied by setting different application rates of zinc fertilizer and nitrogen fertilizer. The results showed that the application of pure N 225 kg/hm~2 and spraying 0.20% ZnSO₄ as the best treatment, the zinc content in potato tubers increased by 6.8 mg/kg, the plant height, the number of tubers per plant and the weight of tubers per plant were 98.8 cm, 8.9 ge/zhu, 0.87 kg/zhu, and the yield is 5 6470 kg/hm~2. In production, the method of basal application of pure N 225 kg/hm~2and spraying 0.20% ZnSO₄ can be used to improve the zinc content in potato tubers.