China's elderly population is on the rise, and there is a growing need for improved education for professionals in geriatric health care and management. "Age-Friendly Interior Design" is a mandatory component of the curriculum for students majoring in aged care and management. Problem-Based Learning (PBL) has been introduced as an innovative teaching model. The study aims to achieve several objectives: 1) To compare the knowledge, skills, and interests of students after using Problem-Based Learning (PBL) against predefined criteria. 2) To compare the knowledge, skills, and interests of students after using the Traditional Teaching Method against predefined criteria, and 3) To compare the knowledge, skills, and interests of students after using Problem-Based Learning (PBL) and the Traditional Teaching Method. This research engaged students pursuing degrees in geriatric nursing and management at a university in Sichuan, China. It encompassed both a control group consisting of 42 students and an experimental group with 48 students. The findings indicated that both PBL and traditional teaching methods had a positive impact on enhancing students' knowledge, skills, and interests to some extent. Problem-based learning (PBL) was more effective in improving these aspects than traditional methods with a significance level of 0.05.