This paper is to study the effect of the six elements of task put forward by Nunan on the improvement of students' competencies in legal English, hoping to provide an important glimpse of how current legal English teaching in Chinese universities meets the requirements of the curriculum and the needs of the learners. Based on a case study of college students in China University of Political Science and Law, classes incorporating the six elements to teach both content and language are valid to offer students more exposure to practical extra-linguistic skill building instead of mechanical drills of the linguistic features and translation of legal English.