Abstract: In order to explore the suitable planting period of Cucumis melo in eastern Gansu Province, five sowing dates were set to explore the effects of different sowing dates on the yield, quality and economic benefits of Cucumis melo in eastern Gansu Province.The results showed that the yield, quality and net income of Cucumis melo under different sowing dates increased first and then decreased with the delay of sowing dates, and the best performance was on August 7.