With the continuous development of information technology used in higher education, blending teaching mode fully integrates offline classroom teaching and online high-quality education resources, effectively mobilize students' learning initiative and achieve satisfactory teaching effect. Taking the graduate course "bridge structure system" as an example, combined with the education mobile and web platform of Chaoxing, a PIP blending teaching mode is proposed, which includes three stages. First, lead students to prepare lessons before class. Then, explain key points and difficulties in class, as well as organize discussions. Finally, expand reading extra-curricular literature. Meanwhile, the "problem perspective", also with the literature reading ability of graduate students, are emphasized during the whole teaching process. Lastly, a diversified assessment method with six quantitative indicators, including students' mutual evaluation, is proposed.