Steel Bridge is a professional course in the direction of roads and bridges in civil engineering,which is closely related to engineering practice.A large number of teaching cases and practical cases need to be introduced into the teaching process.This study adopts the mixed teaching mode to reform the traditional teaching mode,through the introduction of online teaching resources to guide students to take the initiative to learn,team learning and exploration learning,to improve the teaching efficiency of the course.Taking the teaching of Steel Bridge in the direction of road and bridge of civil engineering major in Wuhan University of Technology as an example,this paper expounds the construction of on-line teaching resources of Steel Bridge,the practice of mixed teaching mode and the effect of curriculum reform,and introduces the direction of continuous improvement.The questionnaire survey shows that the students agree with Steel Bridge mixed teaching mode,and the practice of the steel bridge mixed teaching mode shows that compared with the traditional single teaching mode,under the mixed teaching mode,students have stronger initiative,good interaction between teachers and students and higher classroom efficiency.