The invention discloses a method for hatching and breeding macrobrachium rosenbergii, and belongs to the field of aquaculture. The method includes the steps that parent macrobrachium rosenbergii is mated, spawned parent macrobrachium rosenbergii is picked and put into an artificial net cage, the parent macrobrachium rosenbergii is poured into a pool, fertilized eggs are hatched, young macrobrachium rosenbergii is arranged in the pool, and juveniles are bred. In the method, the net cage is arranged in the pool for breeding the parent macrobrachium rosenbergii, the parent macrobrachium rosenbergii is bred in the net cage so as to be conveniently poured into the pool, nutrition is promoted and sex glands are promoted to be matured again during spawned hatching of the parent macrobrachium rosenbergii, good water quality is guaranteed, the hatching rate and the emergence rate are increased, and a lot of labor is saved. Through the method, 4725 seedlings emerge per parent macrobrachium rosenbergii on average; 7.09 seedlings emerge per a unit water body on average, and 1002 thousands of seedlings emerge per cubic meters to the maximum; the survival rate of commercial seedlings reaches 67%; female macrobrachium rosenbergii can spawn three or more times from April to May; compared with existing methods for breeding seedlings, the method has a remarkable effect. By the utilization of phototaxis of the young macrobrachium rosenbergii at the early stage, collecting, counting and pool arranging are performed on the young macrobrachium rosenbergii, and the method is convenient and rapid to implement, and saves a lot of labor and material resources.