In the current architectural design education, there are many problems in the teaching carrier of design course, such as the simplification of architectural type, the fixation of design content, and the disconnection of architecture and region. This paper attempts to introduce the design theory and method of critical regionalism into the teaching of architectural design course in the second grade by combing the development process of architectural design education and combining the development trend of architectural design theory The design of the teaching carrier "rural living room" is analyzed and explored in five aspects of the training objective, teaching approach, teaching content, teaching object and teaching results of the teaching process, which plays a driving role in improving the teaching quality, teachers" initiative, students" innovation and the exploration of non historical regional and modern local architectural design methods.