The invention discloses a non-contact measuring device of GIS equipment deformation. The device includes a target, an industrial camera used as a displacement sensor, a data transmission unit, a datacollection and processing unit and a communication unit. Imaging of reflective or luminescent markers of the target on a COMS image sensor is carried out through an optical lens in the industrial camera, a frame image is acquired, the frame image of the reflective or luminescent markers of the target is transmitted to the data collection and processing unit through the data transmission unit, andextraction on target feature points of the frame image is completed by the data collection and processing unit; and target coordinate information after image processing is uploaded to a cloud-side server through the communication unit. The measuring device of the invention solves the problems of low working efficiency, error tendency, large errors, inconvenient data reading and the like of traditional mechanical-type measuring scales, and ensures online monitoring of GIS equipment status, normal running and safety of detection personnel.