This study examines the contributions and challenges of theological education within The Apostolic Church Nigeria (TACN) from its establishment in 1931 to the present. The objectives are to explore the historical development of TACN's theological institutions, assess their impact on doctrinal teaching and ministerial effectiveness, and identify the challenges in sustaining these educational programmes. Employing a historical and qualitative research methodology, the study utilises document analysis, interviews with key stakeholders – including faculty, alumni, and current students – and thematic analysis to gather insights into the evolving landscape of theological education in TACN. The findings reveal that TACN's commitment to theological education has significantly enhanced its leaders’ intellectual and spiritual capacities, contributing to the church’s doctrinal consistency and overall growth. Institutions such as The Apostolic Church Theological Seminary in Amumara and The Apostolic Church LAWNA Theological Seminary in Jos have structured ministerial training. However, challenges such as limited financial resources, cultural resistance to formal education, and the need to balance spiritual empowerment with academic rigour persist. The study concludes that for TACN to continue advancing its theological education programmes, it must invest strategically in infrastructure, technology, and faculty development while contextualising theological training to meet contemporary needs. The recommendations emphasise fostering a holistic approach integrating academic rigour with spiritual formation. This study contributes to understanding TACN's educational framework and offers practical insights for enhancing theological education within other Pentecostal movements facing similar challenges.