A printing method using a low melting-point material is disclosed. The method first controls a nozzle (3) of a 3D printer to move to a position corresponding to an internal-contour (41) of a 3D model for printing the internal-contour (41) upon a printing platform (31), then controls the nozzle (3) to move to other position corresponding to an exterior-contour (42) of the 3D model for printing the exterior-contour (42). After completing the exterior-contour (42), the method controls the nozzle (3) to move inwardly to leave away from the exterior-contour (42), and then changes a related position between the nozzle (3) and the printing platform (31) upon z-axis for a next printing-layer (4). The method prevents a drooling event of the low melting-point material occurs at the exterior-contour (42) and destroys an appearance of the 3D model.