Abstract: In order to study the influence of emulsion failure on the adhesion of enameled wire and improve the stability of enameled wire quality, Explore the detection data such as the stripping and twisting test and the sudden break test of enameled wire, the comparison of emulsion failure, the comparison of copper powder color, the comparison of the surface finish of bare wire, etc., which provides a basis for the influence law of the adhesion performance of enameled wire. The results show that the effectiveness of different additives in improving black powder and adhesion provides a basis for the maintenance of drawing emulsion in the production of enameled wire, and also provides a method for improving the production quality of enameled wire.