Quick reproduction method of grape grafting seedlings

The invention discloses a rapid propagation method of grape grafted seedlings. The winter grape hard branch is taken as a rootstock and a scion. Through an appropriate temperature, the graft union is firstly in thermal synthesis. Afterwards the rootstock surface is heated for the callus of the graft union. A medicament with an proper formula is adopted for the dipping of the injured face to facilitate the healing of the graft union and the wound healing and rooting of the rootstock lower part, in which the step is that the first is the rootstock branch treatment, the second is the ear shoot treatment, the third is the inlaying grafting and connecting of the rootstock branch and ear shoot, as well as the ear opening bandaging, the fourth is the heat wound healing of the graft union, the fifth is the wound healing and rooting of the rootstock opening, the sixth is the transplanting and container transplanting seedling. The invention is simple and practical with convenient operation, short seedling cycle which only needs 1 to 8 months, high survival rate which can be more than 90%, low production cost, strong seedling growth, long growth period, fully aging branches and tendrils and good seedling quality, thereby the mechanical large-scale factory production is facilitated.