Against the backdrop of teacher education program accreditation, this program has developed an extracurricular educational system aligned with the “One Practice, Three Acquisitions” graduation requirements to address issues such as loose integration between extracurricular activities and accreditation standards, and fragmented event organization. This framework comprises four modules: “Professional Ethics Immersion”, “Teaching Enhancement”, “Educational Experience”, and “Development Empowerment.” Implementation is achieved through branded activities and a dual-teacher collaboration mechanism, supported by an evaluation system combining quantitative points with qualitative portfolios and featuring a dynamic feedback loop. This ensures seamless integration with formal classroom learning. Practice demonstrates that the system effectively enhances teacher trainees’ comprehensive literacy and professional competence, providing an actionable pathway for developing extracurricular programs under accreditation-driven frameworks.