The embodiment of the utility model provides a subassembly containing post insulators and equalizer ring relates to the electric power system field to solve the present inhomogeneous problem of post insulators high pressure tip field distribution. This subassembly containing post insulators and equalizer ring includes: post insulators, this post insulators includes along this post insulators length direction, upper segment post insulators and hypomere post insulators through link fitting connection, equalizer ring under equalizer ring and the runway type on upper segment post insulators's topis provided with the runway type, set up circular equalizer ring and circular time equalizer ring gone up in upper segment post insulators and hypomere post insulators's junction, wherein circular upward equalizer ring and circular equalizer ring down set up upside and downside at a link fitting respectively.