Intelligent lightning arrester on-line monitoring device

The utility model provides an intelligent lightning arrester on-line monitoring device which comprises a fixed connecting rod which is vertically arranged, the lower end of the fixed connecting rod is inserted and fixed under the ground, the intelligent lightning arrester on-line monitoring device further comprises a rain cover which is arranged in a downward opening mode, and the rain cover is arranged on the fixed connecting rod. A connecting hole penetrating through the upper side and the lower side of the rainproof cover is formed in the center of the rainproof cover, the fixed connecting rod is connected into the connecting hole, the rainproof cover can move up and down along the fixed connecting rod, and a connecting pipe structure is formed in the center of the rainproof cover. The lower end of the connecting pipe structure is lower than the lower end of the rainproof cover, a floating disc is arranged at the lower end of the rainproof cover and can float on the water surface, an installation space is