Air suspension strut is a typical active suspension that solves the limitations of traditional passive suspensions, which cannot adjust stiffness, damping or height based on road conditions. Using air springs as the core support, it consists of an ECU, sensors, air compressor, air springs and control valves. The system automatically adjusts height, stiffness and damping to suppress body roll and pitch, improve comfort and stability, lower fuel consumption at high speed, and adapt to complex roads. With lightweight, high load capacity and excellent shock absorption, it reduces wear and prolongs vehicle lifespan, greatly upgrading driving and riding experience.