The invention relates to the field of electric scooters, and particularly discloses a foldable scooter capable of switching batteries intelligently. The foldable scooter comprises a scooter head, a scooter body, a foldable stretching mechanism and a locking device. The locking device is composed of locking handles, a locking bar, locking soldering lugs, springs and bolts. The locking handles are connected with the locking bar through the bolts, the springs are mounted on the bolts, a clamping groove is formed in the rear portion of each locking soldering lug, and can be matched with the locking rod, and the side section of the head of each locking handle is an eccentric round hole. According to the locking device of the foldable scooter, the safety is higher in the using process of the foldable scooter, the firmness in the using state is ensured, and automatic folding can be prevented effectively.