1. Based on Beidou UWB indoor and outdoor dual positioning intelligent wheelchair uses relatively novel UWB technology for indoor positioning. UWB has the characteristics of high precision, high anti-interference, wide application range, indoor and outdoor use, high safety, low power consumption, no radiation damage, safe and reliable use. 2. Each part adopts modular design, each function is designed into an independent module, the user can choose according to individual needs, configure the most suitable function module to reduce system cost and improve cost performance. 3. There are a variety of human-computer interaction methods such as voice, infrared, joystick, head posture, etc., allowing users to interact in a variety of ways and can switch any mode according to demand, which can meet the daily travel needs of different disabled people.