The annealing kinetics of radiation defects was studied in molybdenum exposed to an integral neutron dose of 1. 4 multiplied by 10**2**2 neutron/cm**2 (4 multiplied by 10**2**1 neutron/cm**2 with energy of more than 1 MeV) at 470 plus or minus 30 degree C. The activation energies of annealing of the radiation defects and the temperature ranges in which they are resistant were determined. The types of defects which build up during the bombardment of molybdenum under these conditions were determined on the basis of the experimental data, using the results of transmission electron microscopy.