The invention discloses a method for rapidly utilizing the Indica-Japonica rice heterosis, and belongs to the technical field of plant breeding. The method mainly comprises the following steps: takingone of Indica rice subspecies and japonica rice subspecies as a donor parent, and taking the other rice subspecies as a recurrent parent for hybridization to harvest F1 seeds; investigating agronomiccharacters during the field growth, and harvesting test seeds after ripening; selecting individual plants with the indica-japonica rice heterosis according to field performance and seed test data, wherein the selected individual plant material can be directly used for breeding fine rice varieties. Compared with saturated backcross, the invention adopts an unsaturated backcross method, which has the characteristics that a progeny material has great genetic polymorphism, and the Indica-japonica rice heterosis is obvious; compared with the unsaturated backcross, the method for rapidly utilizingthe Indica-Japonica rice heterosis, disclosed by the invention, combines the unsaturated backcross with anther culture, so that the progeny material Indica-japonica rice heterosis is obvious and character stabilization is quick. The invention realizes the unification of huge utilization of the Indica-japonica rice heterosis and shorter material cultivation time.