The invention provides a power distribution type lightning arrester preventing sparks in a pressure release process. When thunder and lightning and overvoltage occur, an overvoltage arc release path is formed by arc control panels under the point effect, overvoltage is rapidly released, and accordingly, lines and the lightning arrester are protected; by means of semi-ring grooves and longitudinalgrooves in the surfaces of upper electrodes, lower electrodes and intermediate electrodes, recombination of the electrodes and a casing is facilitated, adhesive force of the electrodes and the casingcan be improved, damp air is prevented from entering the casing, the risk of flash explosion is reduced, overall mechanical strength can be improved when the upper electrodes, the lower electrodes andthe intermediate electrodes are combined with components such as resistor discs, the casing and the like, bending resistance and torsional strength of the lightning arrester are improved, and the probability of disassembly of the lightning arrester in a pressure release process is greatly reduced; the electrodes are made of stainless steel instead of common aluminum or aluminum alloys, the electrode melting point is increased to 1,360 DEG C or higher from about 660 DEG C, and the probability of melt dropping of the electrodes is reduced.