With the deepening of educational reform and innovation, in order to promote the deep integration of modern educational technology and teaching, and improve the teaching quality of higher engineering education, according to the new situation of bridge engineering teaching, the application of PBL teaching method based on OBE concept in bridge engineering is introduced. As a basic theoretical course for civil engineering, bridge engineering has the characteristics such as wide knowledge, strong practicality and great difficulty, etc. Based on the teaching experience and students' feedback, the reform and practice of teaching content of bridge engineering, decomposition of pedagogy, and implementation and application of teaching method are carried out. An innovative classroom is built from the three aspects of "taking problems as the main line, teachers as the leading role and students as the main body", which takes the knowledge of bridge accidents and continuous beam bridge construction method as an example to illustrate. Through practical application, it not only inspires students' desire to seek knowledge actively, cultivates students' innovative thinking and team cooperation ability, but also improves students' ability to recognize, analyze and solve problems, resulting in more outputs.