In this study, quasi-experimental methods will be used to study the cultivation of pre-service English teachers' teaching ability of technology integration, which is termed TPACK (Technological Pedagogical Content Knowledge). The samples in this study are natural classes of two pre-service English teachers. One group is the experimental group and the other is the control group. Through the two questionnaires of pre-test and post-test, the research objectives will be achieved through data collection and analysis :1. To understand the perception of pre-service English teachers' TPACK level based on the Technology- dimensions. 2. To explore how to construct a practical Micro-Lesson Design to develop the TPACK level of pre-service English teachers. 3. To identify the effect of Micro-Lesson Design on pre-service English teachers’ achievement of TPACK level . The results of this study will contribute both theoretically and in practice to improving the integration of technical competence in subject teaching of pre-service English teachers.