The invention belongs to the technical field of robot accessories, and particularly relates to a high-temperature liquid substance spray head which comprises a shell, a cavity, a combined frame, a bottom frame and a piston power device. The cavity is connected with the interior of the shell in an integrally-formed mode. According to the high-temperature liquid substance spray head, when the pistonpower device is matched with a support to apply force to a plunger body in the cavity, a heating pipe heats substance in the cavity in advance, during heating, a liquid level sensor and a temperaturesensor can be used for receiving internal data to facilitate data obtaining, a nozzle connected with the plunger body is used for ejecting out liquid metal or non-metal substance since the plunger body has a negative pressure function, the acting purpose is achieved, after the piston power device does work reversely, and an upper cover with an upper cover hole can be used for secondary feeding sothat the purpose of circulating high-temperature liquid spraying is achieved; and meanwhile a combined buffer assembly is arranged in the bottom frame, self vibration strength can be reduced in the ejection process, and stability is kept.