Abstract: In order to improve the quality of explosive welding, a more comprehensive understanding of the explosive welding layer combination is needed. Previous studies on the quality of the explosive welding were almost fully undertaken by means of transmission electron microscopy (TEM), with the help of which the binding to the surface of the material at the tissue was observed to determine whether the combination was good or bad. Although this method is accurate, it however is a destructive test, so it does not apply to the actual work of the 100% detection. In this paper, titanium steel explosive welding specimen was used as the research object, and ultrasonic imaging was employed to study the quality of explosive welding. The height of the ripple and the distance of the ripples were used as the two parameters for the evaluation of the quality of explosive welding.