The purpose of this study was to investigate the project work learning effectiveness within the technological creativity teaching strategies (TCTS) for the students in vocational high schools. The study was designed by quasi-experiment. The students who were taught by TCTS served as the experimental group and who were taught by the traditional teaching method served as the control group. The experimental processes were through 8 weeks (2 hrs per week trend in TCTS) and 75 students joined the study. The research instruments involved were technology creativity questionnaire and technology creativity attitude questionnaire for vocational high school students. The result showed that the experimental group was more significant than the control group in ”originality,” ”manufacturing feasibility”, ”humaneness”, ”flexibility”, ”apperance” and ”material” of technological creativity under control of pre-test variables. In addition, the experimental group was more significant than the control group on the learning effectiveness of technological creativity ”knowledge.”