Intelligent safety belt, seat of vehicle and vehicle

The utility model is suitable for the technical field of vehicle safety control, and provides an intelligent safety belt, a seat of a vehicle and the vehicle. The intelligent safety belt comprises a shoulder belt, a millimeter wave radar and an electric transmission assembly. The first end of the shoulder strap is arranged at the upper end of one side of a seat of the vehicle, and the second end of the shoulder strap is detachably connected with the lower end of the seat of the vehicle to fix a person on the seat; the millimeter wave radar is embedded in the shoulder strap and is used for monitoring vital signs of a person on a vehicle seat and outputting early warning information when the vital signs of the person are abnormal; the electric transmission assembly is embedded in the shoulder strap and connected with a power source of the vehicle and the millimeter wave radar, and when the shoulder strap is fixed to the lower end of the opposite side of the seat, the millimeter wave radar is powered on and work