The invention discloses a fuse wire filled multifunctional controllable additive manufacturing device. The fuse wire filled multifunctional controllable additive manufacturing device is composed of an electric control system, a vacuum chamber, an electronic gun, a high voltage power supply, a motion system, a wire feeding system and a particle feeding device. According to the device provided by the invention, metal particle included slag filling, particle included slag and wire rod mixed filling, single wire rod filling, multiple wire rod same material filling and multiple wire rod different material filling can be realized. By adjusting the wire feeding speed, the wire feeding mode and the filling amount of metal particles of each of wire feeding units, the filling material and the filling amount of a weld joint are changed; in an additive manufacturing process, the metal particles can be synchronously fed by virtue of the wire feeding system and the wire feeding system feeds the wires synchronously to realize metal particle included slag filling, and multiple wire rod same material same speed and multiple wire rod different material different speed addition, so that the components of the filling material of the weld joint are differently distributed, thereby realizing continuous processing of a functional gradient material.