The invention discloses an image managing system which comprises a login module, a user registration module, a defective image input module, a device image input module, an event image input module and an image retrieval module. Image data of the overall process of all electricity transmission links are uniformly stored. An inquiring function is set, images can be retrieved through key work query or advanced query and exported to be used, the management mode of electricity transmission basic data is further optimized, time for retrieving image data is shortened, and working efficiency and lean management of electricity transmission lines are greatly improved. Image attribute fields set in the image managing system are matched with a production managing system, and accomplishment of operation maintenance indexes can be effectively facilitated; the image managing system has great universality and can be used for storage and utilization of various documents in the future according to needs.