RESUMO
Activity is the basic unit of teaching. Task-based teaching activity is popular because it emphasizes "learning by doing". Based on the activity theory, this paper designs a task-based teaching triangle model for TCM ESP course, and applies it to a TCM ESP course Introducing TCM Culture in English. An empirical study of task-based teaching activity is carried out by analyzing the subject, determining the object, employing tools, setting rules, clarifying the division of labor, constructing the community, focusing on the results, and enriching evaluation methods. It is proved that the application of the model is helpful to improve students' learning initiative, enrich their TCM English knowledge structure, enhance their TCM English application ability, and optimize TCM English teaching effect.