"Welding physics" is a basic compulsory course for undergraduate welding technology and engineering specialty in our university. In order to cultivate more innovative talents to meet the needs of engineering, the teaching methods of "welding physics" course should also keep pace with the times. Therefore,in order to improve students’ learning enthusiasm as the premise,through the teaching plan of welding physics teaching material reform,ability training,project-based teaching and numerical simulation,the new teaching mode and teaching concept of "welding physics" guided by exploration are used to cultivate high-quality undergraduate graduates of welding specialty.