Automatic cleaning device of monitoring camera

The invention discloses an automatic cleaning device of a monitoring camera, and aims to overcome the defects of low manual cleaning working efficiency, unsafety and occupancy of a crane for cleaning the monitoring camera arranged at a high place existing in the prior art. An electric push rod which can be linked with a lifting mechanism to push up to attach a rotatable rotary brush to an outer cover of the monitoring camera is supported and arranged on one side of an upright post of the monitoring camera. Since the electric push rod is arranged on the upright post of the monitoring camera and can be linked with the lifting mechanism to push up the rotary brush, the rotary brush is attached to the outer cover of the monitoring camera; the electric lifting mechanism and the rotary brush are operated to rotate, so that the outer cover of the monitoring camera can be cleaned; the monitoring camera is kept in a good monitoring state all the time by operating a cleaning mechanism at any time; cleaning personnel are not required to be hoisted under the monitoring camera with the crane to clean; and the automatic cleaning device is safe and reliable in automatic cleaning. The device has the advantages of simple structure, high working efficiency and no occupancy of a large-sized crane for production.