In the Internet+ era, digital intelligent teaching with deep online-offline integration has become an important trend in the development of new engineering education in local universities. Subgrade and pavement engineering is a major course of civil engineering (road and bridge) in Hubei Engineering University. To solve the problems of large differences in major basis and lack of learning motivation of students, full classroom teaching and insufficient student participation, and emphasizing teaching over learning, emphasizing knowledge over ability, emphasizing results over process in teaching evaluation, the course team proposes an improved BOPPPS teaching model with deep online-offline integration, and explores the application methods and effectiveness of the BOPPPS teaching model in intelligent teaching in local universities, through empirical research in online-offline blended teaching of subgrade and pavement engineering. The results show that the BOPPPS teaching model emphasizes the central position of students, pays attention to the setting and achievement of outcomes, guides students to actively participate and think, and plays an important role in the intelligent teaching reform. The intelligent teaching reform of subgrade and pavement engineering includes four aspects: the creation of MOOC + SPOC + flipped classroom intelligent teaching environment, the reconstruction of a digital teaching resource library, an intelligent teaching design based on improved BOPPPS teaching model, and the implementation of intelligent teaching evaluation on intelligent teaching platform. The SPOC platform of Xuexitong is used to run through all blended teaching links, online and offline learning data of students are collected in the whole process, which can be used for outcome-based course assessment and goal achievement evaluation. The intelligent teaching application of the BOPPPS teaching model in local universities is conducive to improving the teaching effect, changing the role of teachers, optimizing the teaching evaluation system, and improving the quality of new engineering education.