The invention discloses a mobile phone support used in an automobile. The device comprises a bracket, a moving cavity penetrating left and right is formed in the bracket; a charging head is fixedly arranged on the lower end wall of the moving cavity; clamping blocks which are symmetrical left and right are arranged in the moving cavity in a sliding manner; a sliding block fixedly connected with the clamping block is arranged in the sliding rail in a sliding manner; The mobile phone support has the advantages that the mobile phone support is simple in structure, convenient to operate and wide in application range, the storage battery is arranged in the support, the mobile phone support can be charged in the use process, the cooling device is used in the use process or the charging process of the mobile phone, and the service life of the mobile phone support is prolonged.