Leveling and gap measuring device

The utility model discloses a leveling and gap measuring device which comprises a sliding rail, a sliding block, an upper plate and a dial. The sliding rail is of a symmetrical structure and comprises a first part and a second part, and the two sliding blocks are arranged on sliding ways of the first part and the second part respectively and move along the sliding ways where the sliding blocks are located. The upper plate comprises a first upper plate and a second upper plate, one end of the first upper plate and one end of the second upper plate are arranged in the middle of the sliding rail, and the first upper plate and the second upper plate are rotationally connected with the sliding rail; the sliding block is arranged between the upper plate and the sliding rail, and the included angle between the upper plate and the sliding rail is adjusted through movement of the sliding block on the sliding rail. According to the utility model, the problems that the left-right balance is difficult to adjust and the g