The latest College English Teaching Guide (2020) provides corresponding guidance for both teaching methods and teaching evaluation: College English should vigorously promote the deep integration of modern information technology and curriculum teaching, and College English courses should use information technology to establish normal monitoring and feedback mechanism of basic teaching data, and promote course evaluation under new teaching modes such as online and offline blended teaching. Therefore, it is necessary to study the O2O classroom teaching evaluation model of college English under the environment of Internet + Education ecology. The scientific evaluation index system can not only objectively evaluate the current teaching situation, find the advantages and disadvantages in the current situation, but also provide a scientific and systematic reference basis for the new round of teaching practice.