Occupant information sensing method, occupant information sensing device and vehicle

The invention provides a passenger information sensing method, a passenger information sensing device and a vehicle, the passenger information sensing method is applied to the passenger information sensing device on the vehicle, the passenger information sensing device comprises a distance sensor, and the passenger information sensing method comprises the steps that after a target passenger sits on a seat, the distance sensor is used for sensing the distance of the target passenger; the distance sensor is controlled to at least scan the target passenger, and passenger information of the target passenger is determined according to the corresponding distance detected by the distance sensor in the scanning process; wherein the passenger information comprises at least one of the limb size, the weight and the body fat of the target passenger. According to the passenger information sensing method provided by the invention, the passenger information of the target passenger can be obtained under the condition that a camera is not arranged, human body privacy information cannot be obtained, the privacy is higher, and wide application of an in-vehicle information sensing technology is facilitated.