Multimodal discourse analysis should become a new paradigm of teacher discourse research. It is an cross-disciplinary study of linguistics, pedagogy and computer science, which aims to analyze the process of how teachers make a mixed use of different symbol resources to achieve teaching objectives and the interaction mechanism between different symbol resources. The core of the research route is to determine the annotation scheme and form the analytical framework. In this multimodal discourse analysis, the Elan labeling scheme is formed from the starting point of “establishing research perspective” in tieto-truth modeling. Based on this scheme, the raw corpus is processed and annotated and a multi-modal teacher corpus is built. Then a structural frame of reference is constructed based on the relationship between the two sets of modes, namely “intensification - non-intensification” and “complementation-non-complementation”, on which forming a “ framework for modal interaction analysis of teacher discourse” is based. This framework is used as a tool of multi-modal analysis of teacher discourse. With the help of this new paradigm, the multi-modal corpus of famous foreign language teachers can be constructed to highlight the special attributes of famous teachers, so as to promote the formation of multidimensional teaching evaluation ideas, and contribute to the creation of “golden lessons” in a comprehensive and precise way.