The invention discloses a 3D printing remote monitoring device and method. The device comprises a camera, a stepping motor, and a single-chip microcomputer. The camera is disposed on a pitching turning assembly, and the pitching turning assembly is disposed on a horizontal rail which is disposed on a 3D printing rack through a pedestal. The stepping motor is disposed on the horizontal rail and the pitching turning assembly, and is used for driving the camera to move horizontally or carry out pitching rotation. The stepping motor is connected to the single-chip microcomputer through a stepping motor drive circuit. The single-chip microcomputer is used for receiving a control instruction from an upper computer, and remotely controls the camera to rotate. The method comprises the following steps: (1) building a network connection; (2) remotely controlling the camera to move; (3) transmitting monitoring video information in real time; (4) receiving the monitoring video information through the upper computer; (5) monitoring the working state of a 3D printer; (6) remotely controlling the 3D printer. The device and method can be used for the remote monitoring of the 3D printer.