Architectural engineering wall 3D printer system

The invention discloses an architectural engineering wall 3D printer system. The system comprises a printing slide rail, a printing head, pulley cars, lead screws a, lead screws b, motors a, motors b, screws a, screws b and frames, wherein the frames at the two sides are both provided with the lead screws b; the upper ends of the lead screws b are connected with the motors b; the motors b are fixed on the frames; the lead screws b are connected with the screws b; the motors a are fixed on the screws b; the bottom ends of the lead screws a are connected with the motors a; the lead screws a are connected with the screws a; the screws a are fixedly connected with the pulley cars; the printing slide rail is fixed between the two pulley cars; and the printing head is slidingly mounted on the printing slide rail. The system can satisfy the printing requirements of walls with any distance among floors through one set of equipment, improves the wall strength and various physical indexes, improves the construction efficiency, improves the labor environment, and reduces the construction cost.