Abstract: To select the proper rootstock for muskrmelon in Inner Mongolia area, six squash rootstocks were tested using muskrmelon variety Hualaishias scion in the experiment. Self rooted muskrmelon seedlings were used as control. Survival rate of grafted seedlings, field performance, fruit characteristics and yield were used to evaluate the performance of different rootstocks. The results showed that rootstocks Jingyutianzhen No.l and Tiangen No.2 performed better than others. They had higher survival rate （more than 95%） ,better grafting affinity, better vigor and diseases resistance, better quality and improved yield. They were suitable for muskrmelon production in local area.