The intelligent wheelchair adopts active obstacle crossing design. Through universal wheels and mechanical arms, combined with multi-sensor and environmental perception system, it can autonomously identify and smoothly climb over steps and daily road obstacles, and analyze road conditions in real time to avoid danger. Its intelligent control system can automatically adjust the body posture to ensure a smooth and safe obstacle crossing process, and can turn around in situ in a narrow space. The design takes "no sense of obstacle crossing" as the core, and aims to provide users with a truly free and comfortable mobile experience.