The era of education informationization 2.0 highlights the multimodal corpus linguistic approach of corpus constructing and relevant data-mining in classroom teaching and teacher development research.This paper focuses on the construction of Foreign Language Multimodal Corpus of Classroom Teaching (MCCT) based on the basic corpus constructing principles,emphasizing the specific purpose of "teacher self-development".In order to provide the conceptual framework,technological parameters,and a typical example for classroom teaching and teacher self-development research using multimodal corpus linguistic approach,this paper covers MCCT research aim,the construction process,detailed transcription procedures,data segmentation and annotation,as well as the specific features and future applications of the processed MCCT.