Single-trunk double-arm grape tree shape cultivation method suitable for soil burying and cold protection

The invention discloses a single-trunk double-arm grape tree shape cultivation method suitable for soil burying and cold protection, and relates to the technical field of grape cultivation. The method comprises the steps that in the first year, nursery stock field planting, nursery stock tip fixing and winter pruning are conducted; performing unearthing and seedling lifting treatment in spring of the second year; in the growing season of the second year, inflorescences of 2-3 bearing branches are reserved on the bearing mother branches of the grape nursery stocks in the last year, and vegetative growth is conducted on the two reserved preparation branches on the lower portions of the grape nursery stocks; in the winter of the second year, cutting back the two fruiting mother branches at the upper part, and reserving two buds as new preparation branches; 3-5 buds are reserved on the biennial branches on the lower portion, pruning treatment is conducted, and then soil burying treatment is conducted; the second-