Wanrong Sanbai watermelon is both a local excellent variety and a superior germplasm resource.This paper introduces the growth environment conditions and variety characteristics of Wanrong Sanbai watermelon,improves the traditional planting technologv of Wanrong Sanbai watermelon from five aspects:Pre-sowing management,field manage-ment,fertilizer and water management prevention and control of plant diseases and insect pests,harvesting and storage management,and summarizes a set of stable and mature practical cultivation technology through mechanical mulching and fertilization,water and fertilzer integration technology,and simplified pruning measures.After years of demonstration and promotion,this technology can effectively reduce production costs,improve water and fertilizer utilization rate,and enhance yield and quality,achieving good economic,social and ecological benefits,it briefly discusses the next develop-ment of Sanbai watermelon industry.