The invention discloses a heating and hammering composite device, and relates to the technical field of additive manufacturing. The heating and hammering composite device comprises a drive mechanism and a hammering mechanism. The drive mechanism has a first drive state and a second drive state. The hammering mechanism is in transmission connection with the drive mechanism, when the drive mechanismis in the first drive state, the drive mechanism is configured to drive the hammering mechanism to hammer accumulation layers, and when the drive mechanism is in the second drive state, the drive mechanism is configured to drive the hammering mechanism to heat the accumulation layers. According to the heating and hammering composite device, through the arrangement of the drive mechanism, electricenergy, kinetic energy and heat energy can be freely converted in a capacitance charge-discharge manner. After each accumulation layer is completed, treatment can be immediately carried out in a hammering and heating composite manner according to an accumulation path. Thus, the heating and hammering composite device has the beneficial effects of being easy to operate, convenient to construct, high in efficiency and the like, energy can be saved, and the cost can be reduced.