In the context of rapid technological advancement, haptic human-machine interfaces (HMIs) enhance user experience by simulating touch. Electroactive polymers (EAPs) are smart materials with high responsiveness, flexibility, and tunability, making them suitable for haptic actuators and feedback applications. This review examines the role of EAPs in haptic interaction, analyzing driving mechanisms, structural design, functional materials, fabrication methods, and practical applications. We also address challenges like performance limitations and manufacturing complexities, while discussing future trends in material optimization, structural design, and innovative driving strategies. This review serves as a valuable reference for future research and technological advancements in EAPs.