In this paper, we study the following Kirchhoff type elliptic problem with critical growth:
{−a+b∫double-struckR4false|∇ufalse|2dx▵u+u=ffalse(ufalse)+β|u|2uindouble-struckR4,u∈H1false(R4false),u>0indouble-struckR4,where a,β>0, and b≥0, and the nonlinear growth term |u|2u reaches the Sobolev critical exponent since 2∗=4 for four spatial dimensions. In a non‐radial symmetric function space, we establish a local compactness splitting lemma of critical version to investigate the existence of positive ground state solutions.