The purpose of this study is to explore the process of career development experience of non-traditional route teachers serving in junior high schools. Depth of interview method which is expected to make this study closer to the respondents¡¦ life experiences is used to collect the participants¡¦ courses of choosing teaching and presented by the patterns of life stories. The researcher explores the mood changes from these teachers¡¦ courses including growth background, integrating with the road of education, practice stage, exam participation, and future career plans to comprehend why they choose teaching as a career. The researcher concludes the following results according to the collection analysis and induction from these six respondents. 1.Internal personal factors and external environmental factors can affect the career choice from the non-traditional route teachers. 2.The information and learning process are the foundation of choosing teaching as career. 3.The process of exam participation and mental adjustment is the critical period to choose teaching as career. 4.The problems which the non-traditional route teachers face with in reality can provide development for the future researches. It is expected that the study can be the reference for the teacher training institutions and for the non-traditional route students and plan to choose teaching as career in the future. It is also expected that the suggestions according to research conclusions can be the reference for follow-up researches. 1.The suggestion to the non-traditional route students. 2.The suggestion to the teacher training institutions. 3.The suggestion for the researches in the future.