The purpose of this study was to investigate vocational awareness and career decision-making for preservice teachers in the vocational and technological education. We used qualitative research and social cognitive theory with semi-structured interview outline to investigate the relationship between vocational awareness and career decision-making that will be influenced preservice teachers. Otherwise, we also investigated their career decision-making was influenced by vocational awareness or not. This study was randomly selected 20 preservice teachers from Department of Industrial Education and Technology and Department of Business Education in National Changhua University of Education. The data of interview was coded and statistically analyzed by researchers. The result of this study was stated as below: (1) Vocational awareness of preservice teachers was influenced on interest that also influenced their career decision-making in the vocational and technological education. (2) In the vocational and technological education, vocational awareness of preservice teachers’ career decision-making they have some priorities of vital functions is location, environment, and so on. (3) The professional ability is the most important factor for vocational awareness of preservice teachers in vocational and technological education. So, they need to keep learning in their field. (4) They don’t think that study is an only way to improve their abilities for vocational awareness of preservice teachers in vocational and technological education.