Novel customs declaration contrast teaching demonstration device

The utility model discloses a novel customs declaration contrast teaching demonstration device. The device comprises a base body, a supporting column body, a fixing frame body and a demonstration board. Wherein the top end of the base main body is fixedly connected with a supporting column main body, a fixing frame main body is installed at the top end of the supporting column main body, a demonstration board is embedded in the fixing frame main body, a first sliding groove is formed in the supporting column main body, and a first sliding block is embedded in the first sliding groove. According to the utility model, the handle is rotated; the rotating shaft and the gear are driven to rotate; the gear is meshed with the rack; driving rack to move upwards, driving supporting rod to move upwards, by means of the device, the problems that when a traditional demonstration device is used, the height cannot be adjusted according to operators of different body types, the application range of the device is reduced, an