The invention relates to the technical field of camera calibration, in particular to a mobile calibration device and method suitable for a large-scene monitoring network, the device comprises a monitoring camera end and a mobile platform end, the monitoring camera end comprises a monitoring camera and a monitoring
server, the monitoring
server is used for controlling and
processing image data of the monitoring camera, and the mobile platform end is used for receiving the image data of the monitoring camera. The mobile platform end comprises a mobile
chassis, a calibration plate, an LED synchronous
signal lamp, a sensor module and a fixed support, the fixed support is fixedly arranged on the mobile
chassis, the calibration plate surrounds the periphery of the fixed support, the LED synchronous
signal lamp is fixedly arranged on the fixed support, and the sensor module is fixedly arranged at the top of the fixed support and is in a relatively static state; the mobile platform end drives the calibration plate to
walk in the whole field range, so that the monitoring camera end collects images on the calibration plate for internal reference calibration, meanwhile, the LED synchronous
signal lamp and the sensor module are used for resolving external parameters of the monitoring camera in a scene, productivity is liberated, and calibration efficiency and calibration precision are improved at the same time.