The Guidance to College English Teaching indicates that the content and methodology of college English teaching should have its flexibility and adaptability so as to improve the effectiveness and efficiency of teaching and learning.And, college English teachers also need to cultivate professional abilities to adapt to new demands.Under the theoretical frameworks of constructivism, reflective teaching and teachers' career development, this paper aims to discuss the effective teaching philosophies, the importance of reflective approach to teachers' professional skills and teachers' needs at different career phases.Hopefully, this could be an effective exploration into teachers' career education and development under the Guidance to College English Teaching.