This thesis presented the results of a mixed-method study of the impact of a Project-based Research course in a public high school in Taipei, Taiwan. The purpose of this study was to examine the impact of the Project-based Research course from the perspectives of the current students, alumni, and teachers. The high school incorporated traditional education and project-based learning models as their teaching methods. When both students and teachers had to face the dual pressure of adhering to both models, it was unknown if the project-based learning had the same influence as indicated in the research literature on project-based learning. The findings from the study indicated the Project-based Research course helped students to develop life-long skills such as critical thinking, collaboration, and communication skills, as well as academic skills such as speaking and writing. Additionally, teachers' responses reflected that the Project-based Research course provided them another lens through which to view learning and teaching.