The paper aims to research parameters for preliminary test of incense 3D printer to provide technical specifications and data support for subsequent optimization and mass production. Based on the experimental design of the incense 3D printer, the test was carried out to analyze the extrusion pressure, printing speed, distance between the discharge port and the printing platform, model complexity, outlet diameter, water mix ratio and other parameters. Their influences on printing effect and printing efficiency of the incense 3D printer were analyzed to analyze and research main and secondary parameters affecting the incense printer. When the extrusion pressure was 0.4 MPa to 0.6 MPa and the printing speed was 1800 mm/min to 2400 mm/min, the printing effect was better; the optimum distance between the discharge port and the printing platform was 10 mm to 12 mm. Extrusion pressure and printing speed are the two most important factors affecting the effect of incense molding.