Monitoring device of under-work-well cable duct bank observation instrument

The invention discloses a monitoring device of an under-work-well cable duct bank observation instrument. A data processing module receives data collected by a sampling device and processes the data. An image display module receives image signals output by the data processing module and displays images. A storage module is used for storing data. A power module provides power for the data processing module and the image display module. A control key inputs camera shooting and photographing control commands to the data processing module. A data interface is used for transmitting data between the outside and the data processing module. A seven-inch liquid crystal screen is adopted for the image display module. SD card storage is adopted for the storage module. A lithium battery is adopted for the power module. By means of the monitoring device, when the region required to be observed is in an observing window, the camera shooting and photographing functions can record the operation result effectively, the control key is pressed, the current images can be recorded, the image information is generated and transmitted to the storage module to be stored, and a user can conduct related operation according to displaying of the liquid crystal screen in real time.