According to Cultural Capital Theory, motivation and selfidentity is not only a psychological concept but also a sociology concept. The personal factors and learning motivation as well as selfidentity of many learners are interweaved and interacted. This research makes a quantitative study on the English learning of the students pursuing a master degree in science and engineering, analyzes the personal factors representing English learners that originate from different social stratums, leaner’s motivation and selfidentity, and their interrelationships. In the diversified society, how to construct harmonious English learning ecology to help the students from different regions and different social stratums to maximize their development is a topic demanding discussion. 