The utility model discloses an improve device that fish egg hatching is rateed, including water pump, pulsed air pump, inlet tube, trachea, governing valve, collecting vat, sieve plate, electromagnetic relay, apopore, outlet pipe, collecting pipe, hatching groove, its characterized in that: the hatching groove is connected in parallel into one wholly by a plurality of grooves, hatching inslot portion is equipped with the difference type pipe wall, and every hatching groove lower part all is provided with the collecting pipe of a governing valve and a connection governing valve, collection tubeconnected to collecting vat wherein, and collecting vat middle part draw -in groove is provided with sieve plate, and hatching groove one side is provided with the apopore, and the apopore is connected with the outlet pipe, and electromagnetic relay is through advancing water piping connection water pump, governing valve, and electromagnetic relay passes through intake -tube connection pulsed airpump, governing valve. It rates to improve the naked heavy lip fish fish egg hatching in xinjiang.