Abstract:‘Yuyou’is a new watermelon hybrid p roduced by Forestry and Horticulture College, Henan Agricultural University and Henan Yuyi Seed Company Ltd. . The variety is suitable for planting in greenhouse and open field during sp ring in some areas in China. The life history is about 85 days. The average fruitmass is 5 - 6 kg/ fruit, the yield is about 471.3 t/hm2. The fruit is oval in shape with smooth dark-green on its surface. The content of soluble solid material is about 12.0%. The variety tastes very delicious. It is very convenient for store and transport.