Crop breeding method for introducing foreign germplasm into local excellent germplasm

The invention discloses a crop breeding method for introducing foreign germplasm into local excellent germplasm, which comprises the following steps: carrying out genotype and multipoint phenotype evaluation on the foreign germplasm to obtain preselected foreign germplasm; hybridizing the preselected foreign germplasm and the preselected local excellent germplasm for a plurality of rounds to form a pre-breeding bridging group; carrying out genotype and multipoint phenotype evaluation on the pre-breeding bridging population to obtain a preselected excellent pre-breeding bridging inoculum, and carrying out composite hybridization on the preselected excellent pre-breeding bridging inoculum and a local excellent germplasm to carry out germplasm population improvement; the excellent germplasm obtained after population improvement is used for improvement of existing excellent germplasm. The genetic background of existing breeding germplasm can be effectively broadened, more excellent alleles permeate into the broad