Abstract: Five rootstock varieties of‘Warrior 2’‘Qiangli’‘Evergreen 787’‘Chiba’‘Greenwood’were grafted with‘Schubert’respectively.‘Schubert’self-rooted seedlings were used as the control（CK）to study the grafting effects of different rootstocks in Gannan region.Based on the influence of tomato growth,yield and resistance in autumn and winter in the region,the rootstock varieties suitable for application and promotion in Gannan region were selected.The results showed that the grafting of different varieties of rootstocks had different degrees of improvement in yield and bacterial wilt resistance,and had no obvious impact on quality traits such as fruit shape and soluble solid content.‘Warrior 2’and‘Greenwood’had improved plant growth,disease resistance,commercial fruit rate,yield,etc.were significantly higher than CK,and the yield was 37.6%and 28.9% higher than that of CK.It can be used as the preferred rootstock for tomato grafting cultivation in autumn and winter in Gannan region.