Adjustable road advertisement support

The utility model relates to an advertisement support, in particular to an adjustable road advertisement support. The utility model provides an adjustable road advertisement support which can adjust the length and the height of an advertisement and can facilitate installation of the advertisement. The adjustable road advertisement support comprises a base, and a support body is arranged on the right side wall of the inner side of the base; the supporting plate is arranged between the tops of the bases; the mounting rods are arranged on the left side and the right side of the front side wall of the supporting plate; the servo motor is arranged on the inner side of the support; the first screw is arranged on an output shaft of the servo motor through a coupler. A worker holds a first handle and rotates upwards, the worker holds the first handle and pulls the first handle backwards to enable clamping blocks to slide backwards, the clamping blocks drive second guide rods to slide backwards, and the worker places