Bus convenient for old people to take

The invention discloses a bus convenient for old people to take. According to the bus convenient for old people to take, a motor and a pair of main guiding rails arranged in a front-back symmetry mode are fixedly arranged on the lower surface of a chassis, the direction of each main guiding rail is consistent with the width direction of the chassis, wherein a main supporting plate is connected between the two main guiding rails in a left-right sliding mode; a transmission shaft of the motor is in transmission connection with a transmission rod with external threads, sleeves with internal threads are fixedly connected to the lower surface of the main supporting plate, and the transmission rod is in transmission connection with the sleeves through threads; a pair of auxiliary guiding rails are fixedly connected on the lower surface of the main supporting plate in a front-back symmetry mode, the direction of each auxiliary guiding rail is also consistent with the width direction of the chassis, auxiliary support