After the international financial tsunami, the Taiwan Government implemented several policies to lower the unemployment rate in order to respond to the changeable global economic environment, and to adjust and reorganise the domestic industrial structure. As a result, the technological and vocational education system in Taiwan changed significantly. Therefore, Problem-Based Learning (PBL), which is commonly used and approved in medical education, was applied in this study to practical monograph courses in business management education in technological and vocational institutes, based on active research using a qualitative study. Students’ learning data were collected during classroom participation, observation, teachers’ instructional journals and semi-structured interviews. A quantitative study using a questionnaire survey was treated as the secondary method and a one-group pre-test and post-test design as a quasi-experiment was applied. The survey used a workforce competence scale developed by Yeh et al in 2010 and based on the Delphi technique, to probe into the effect of PBL on students’ workforce competence.