Abstract: With the transformation and upgrading of manufacturing industry to intelligent and digital, the demand for high-quality welding engineering and technical personnel is increasing. However, the traditional practical teaching system of welding specialty in application-oriented universities is faced with pain points such as disconnection from industry, insufficient resource input and outdated teaching mode, which makes it difficult to cultivate talents who meet the requirements of enterprise positions. Taking the welding technology and engineering major of Harbin Huade University as an example, this paper deeply analyzes the exploration and innovation of practical teaching reform in the modern welding industry college jointly built with Harbin Welding Institute ( Harbin Welding Institute ). Through a series of measures, such as constructing a new model of ' school-enterprise double subject ' collaborative education, building and sharing practical platform, implementing ' double tutorial system ' and project-based teaching, and establishing a joint evaluation mechanism, the bottleneck of traditional practical teaching has been effectively broken through. Through the reform of practical teaching, the quality of personnel training, students ' engineering practice ability and employment competitiveness of welding specialty have been significantly improved, and the evaluation of students majoring in welding in our school by employers has been significantly improved.