Combined with the lining renovation construction case of the tunnel from Huaiji to Donggui Plaza of Zhaoqing,a series of renovation technologies such as tunnel lining reinforcement are described in detail.In addition,continuous optimization and adjustment are made according to the tunnel site renovation situation and construction process during lining construction stage.This section of tunnel has achieved remarkable effect after consolidation by lining,which provides an empirical reference for similar tunnel lining reinforcement construction.