Bypass connection device for uninterrupted operation of power distribution network

A bypass connection device for uninterrupted operation of a power distribution network comprises two flexible lead-down cables connected to two ends of a main power line respectively. A cable butt-joint box is connected to the other end of each flexible lead-down cable, a power cable is connected between the two cable butt-joint box, and a bypass switch is serially connected to each flexible lead cable. By means of the bypass connection device, perfect butt joint of flexible cables with normal cables is realized, and the problem of difficulty in realization of long strain section power distribution network bypass operation. The bypass connection device has the advantages of simple structure, convenience and reliability in use, low equipment cost, difficulty in damage and the like.