High-stability supporting structure of lightning arrester

The invention discloses a high-stability supporting structure for a lightning arrester. The high-stability supporting structure comprises a supporting base, a fixing base and a buffer assembly; mounting blocks are symmetrically arranged in the middles of the interiors of the two side walls of the supporting base; mounting holes are formed in the middles of the mounting blocks; rotating rods are connected to the inward sides of the mounting blocks; a starting button arranged in a fixing seat in the supporting base drives a hydraulic rod to drive a pressing plate below the hydraulic rod to pusha lightning arrester base sleeve shell, so that the lightning arrester is clamped and placed in a mounting groove through the pressing plate, and therefore, the lightning arrester base sleeve shell does not shake in the fixing seat; external vibration propagation is absorbed through the cooperation of a supporting column and auxiliary supporting plates arranged inside and upper and lower pressingsprings, and therefore, th