The optimization design and experimental comparison of the coating pull-out adhesion detection device are introduced.The results show that the optimized design of the coating pull-out adhesion detection device can meet the determination of the coating adhesion pull-up method,and the problems of vertical alignment and tensile rate fluctuation can be overcome in the test,and the test column of different parts on the paint layer can be continuously tested through adjustment.The designed coating drawing adhesion detection device improves the test accuracy,the fluctuation performance in the test is small,and the data reliability is improved.