The invention discloses a mobile phone holder suitable for being used on a vehicle. A fixation clamp is fixedly connected with a screw and a nut through a buckle; a fixation base is connected with the fixation clamp; a fixation rod is connected with the fixation base; a ball cap is connected with the fixation rod; a rotation ball head is connected with the ball cap; and a universal clamp is connected with the rotation ball head. The fixation clamp can be sleeved on a bicycle handle bar or any place, where the fixation clamp can be fixed, such as a motorcycle handle bar and a handle bar on an automobile operating board, can be wholly fixed by adjusting the screw and the nut, and enables the universal clamp to be adjusted to an appropriate direction by adjusting the rotation ball head; when the universal clamp is opened, a mobile phone can be inserted therein, and can be used safely and firmly, thereby meeting the requirements of enjoying the music or making a phone call and the like anytime and anywhere of the people; and the mobile phone holder is small and exquisite and beautiful in appearance, wide in application range, simple in structure and simple to operate.