After keeping on working for a long time

insulating materials will aging or damage that may cause corona discharge or fault in the special internal environment of the electric equipment. These potential faults which are difficult to be found may cause the electric equipments damage

even grave accident. The paper introduces a new electric endoscopic system which based on the technology of embedded system

ultraviolet discharge detection and image acquisition. The paper presents the theory of ultraviolet discharge detection

the block diagram of hardware platform

the process of running embedded Linux and Qtopia file system

the method of image acquisition by USB camera and

then showing the flow chart of system application program. At last

the simulant experiment been done proves the new electric power endoscopic system is useful in detecting electric power equipment

which can also provide important information of the equipment.