Hiring undergraduate lab assistants in chemistry departments is common in college. However, few studies have focused on promoting undergraduate chemistry learning and thinking skills through this work experience in chemistry teaching laboratories. This article discusses the strategy we implemented in the lab assistant program. The student-centered, inquiry-based work experience provided a unique learning environment for undergraduate students. A routine lab assistant job can be transformed into a unique chemistry learning experience. The development of critical thinking skills, problem solving skills, and working skills from this job experience promotes undergraduate learning and shapes students' future study.