Mounting bracket and display system

The utility model relates to a mounting support, the mounting support comprises a lifting adjusting mechanism, the lifting adjusting mechanism comprises a supporting structure, a sliding structure and a first elastic piece, the supporting structure comprises a sliding rail, two sides of the sliding rail are provided with first mounting grooves, the sliding structure comprises a sliding part and a first connecting part which are connected with each other, the sliding part is clamped on the sliding rail, and the first connecting part is clamped on the sliding rail. The first connecting part is used for connecting a to-be-connected piece; the extending part of the first elastic piece is fixedly connected to the side, away from the sliding rail, of the sliding part. In the process that the sliding structure ascends and descends along the supporting structure, the elastic force of the first elastic piece can be balanced with the gravity of the piece to be connected, and friction force can be generated between the sliding part and the sliding rail to form lifting damping, so that lifting adjustment can be manually and randomly carried out in the stroke, and the influence on the reliability and the service life of the mounting bracket is eliminated. The utility model further provides a display system comprising the mounting bracket.