The invention discloses a Solanum melongena L. bacterial-wilt-resisting solanum melongena stock and a grafting and cultivation method for grafting solanum melongena onto nicotiana. The Solanum melongena L. bacterial-wilt-resisting solanum melongena stock is the Solanum melongena L. bacterial-wilt-resisting solanum melongena stock with the number of G2011-203, and the preservation serial number of the Solanum melongena L. bacterial-wilt-resisting eggplant stock in the China Center for Type Culture Collection is CCTCC NO.P201309. According to the grafting and cultivation method for grafting the solanum melongena onto the nicotiana, the Solanum melongena L. bacterial-wilt-resisting solanum melongena stock serves as a stock, a nicotiana crop serves as a scion, and grafting is carried out. The Solanum melongena L. bacterial-wilt-resisting solanum melongena stock has the advantages of having the high performance of resisting the bacterial wilt, being strong in growth vigor, and having wide affinity with solanaceae crops; according to the grafting and cultivation method for grafting the solanum melongena onto the nicotiana, the mode for grafting cultivation between different genuses of the same family of the solanaceae crops is created, and a new way for having effective control over rootstock diseases of the nicotiana is provided.