Abstract: An automatic sample preparation method was explored to improve the quality and efficiency of sample preparation at the same time. The automatic gluing machine used the principle of rotary extrusion to extrude the adhesive, and had its own thermal insulation function to ensure the smooth adhesive release. It relied on the automatic control of the moving speed and extrusion pressure of the rubber head to ensure the gluing effect. The automatic gluing method could quickly and accurately meet the sample preparation requirements, and improved the consistency and efficiency of the zinc layer adhesion test sample preparation between the supplier and the demander.