Forest sleeve grafting device

The invention relates to a forest sleeve grafting device, and belongs to the technical field of grafting, the forest sleeve grafting device comprises a fixing assembly, a jacking assembly and a cutting assembly, the jacking assembly is arranged above the fixing assembly, the cutting assembly comprises a sleeve, a guide rail, a fixing seat and a cutting knife, and the sleeve is rotatably connected to the jacking assembly; an opening of the guide rail faces one side of the sleeve, the two ends of the guide rail are fixedly connected to the side walls of the sleeve respectively, sliding grooves are formed in the two parallel side walls of the guide rail, an opening of the fixing seat faces one side of the sleeve, the top wall of the fixing seat is slidably connected into the sliding grooves, and grooves allowing the cutting knife to penetrate through are formed in the two parallel side walls of the fixing seat. Firstly, the fixing assembly is fixed to a branch, the abutting assembly abuts against the upper end o