A continuous semisolid die casting production method, wherein, the method comprising: performing the following steps by a central controller: controlling a nucleating agent preparation device to produce solid nucleating agent and to deliver the solid nucleating agent to a liquid slurry holding container of a semisolid slurry preparation device; the step of controlling a nucleating agent preparation device to produce solid nucleating agent and to deliver the solid nucleating agent to a liquid slurry holding container of a semisolid slurry preparation device comprises: after nucleating agent spindles are put into a resistance furnace, controlling a sealed cap to be locked, controlling the resistance furnace to heat the nucleating agent spindles to liquid nucleating agent with liquid preset temperature, controlling a metal mold to be heated to a first preset temperature and maintain this temperature, controlling a hydraulic equipment to close the metal mold, controlling a lift tube to inject the liquid nucleating agent into the metal mold, after the solid nucleating agent is produced, controlling the hydraulic equipment to open the metal mold, delivering the produced solid nucleating agent to solid nucleating agent transmitting equipment through a solid nucleating agent delivering equipment, the liquid preset temperature being 650-700 degree Celsius, the first preset temperature being 180-240 degree Celsius; the mass of the solid nucleating agent transmitted to the liquid slurry holding container of the semisolid slurry preparation device takes 0.5∼1.5% of the mass of liquid slurry; controlling the semisolid slurry preparation device to produce semisolid slurry and to deliver the semisolid slurry to a semisolid die casting machine; controlling the semisolid die casting machine to perform semisolid die casting. controlling a nucleating agent preparation device to produce solid nucleating agent and to deliver the solid nucleating agent to a liquid slurry holding container of a semisolid slurry preparation device; the step of controlling a nucleating agent preparation device to produce solid nucleating agent and to deliver the solid nucleating agent to a liquid slurry holding container of a semisolid slurry preparation device comprises: after nucleating agent spindles are put into a resistance furnace, controlling a sealed cap to be locked, controlling the resistance furnace to heat the nucleating agent spindles to liquid nucleating agent with liquid preset temperature, controlling a metal mold to be heated to a first preset temperature and maintain this temperature, controlling a hydraulic equipment to close the metal mold, controlling a lift tube to inject the liquid nucleating agent into the metal mold, after the solid nucleating agent is produced, controlling the hydraulic equipment to open the metal mold, delivering the produced solid nucleating agent to solid nucleating agent transmitting equipment through a solid nucleating agent delivering equipment, the liquid preset temperature being 650-700 degree Celsius, the first preset temperature being 180-240 degree Celsius; the mass of the solid nucleating agent transmitted to the liquid slurry holding container of the semisolid slurry preparation device takes 0.5∼1.5% of the mass of liquid slurry; controlling the semisolid slurry preparation device to produce semisolid slurry and to deliver the semisolid slurry to a semisolid die casting machine; controlling the semisolid die casting machine to perform semisolid die casting. after nucleating agent spindles are put into a resistance furnace, controlling a sealed cap to be locked, controlling the resistance furnace to heat the nucleating agent spindles to liquid nucleating agent with liquid preset temperature, controlling a metal mold to be heated to a first preset temperature and maintain this temperature, controlling a hydraulic equipment to close the metal mold, controlling a lift tube to inject the liquid nucleating agent into the metal mold, after the solid nucleating agent is produced, controlling the hydraulic equipment to open the metal mold, delivering the produced solid nucleating agent to solid nucleating agent transmitting equipment through a solid nucleating agent delivering equipment, the liquid preset temperature being 650-700 degree Celsius, the first preset temperature being 180-240 degree Celsius; the mass of the solid nucleating agent transmitted to the liquid slurry holding container of the semisolid slurry preparation device takes 0.5∼1.5% of the mass of liquid slurry; controlling the semisolid slurry preparation device to produce semisolid slurry and to deliver the semisolid slurry to a semisolid die casting machine; controlling the semisolid die casting machine to perform semisolid die casting.