Carbon fiber reinforced polymer (CFRP) composites are widely used in aerospace applications owing to their high strength-to-weight ratio. Despite their advantages, mechanical fastening remains essential due to manufacturing limitations and structural load transfer requirements. Interference fit technology shows significant potential for enhancing the strength and fatigue life of mechanicaly fastened CFRP joints. However, the inherent brittleness and low interlaminar strength of CFRP materials pose significant challenges to its application. To address these issues, this paper reviews the research progress on interference fit connection technology for CFRP composite materials, both domestically and internationally. It analyzes the fatigue life enhancement mechanisms associated with interference fit connections, introduces the primary process methods used for achieving interference fits in CFRP composites, and discusses the key factors influencing interference fit connection quality. Based on this review, future development trends and application prospects of
CFRP interference fit connection technologies are discussed.