Abstract: Soybean and maize belt composite planting technology can not only effectively increase planting yield, but also effectively save cultivated land space and promote the sustainable development of agricultural economy in China. Nanzheng District of Hanzhong City fully arouses the enthusiasm of the masses to plant, and vigorously promotes the soybean and maize composite planting technology. This paper introduced the current situation of soybean and maize belt compound planting in Nanzheng District, analyzed the problems existing in soybean and maize belt compound planting, and put forward the countermeasures and suggestions to solve the problem.