An environment-friendly exterior wall tile strengthening process includes the steps of tile cleaning, investigation and restoration, preparation of stainless steel meshes, reinforcement, reinforcementmethod for special positions and inspection. The environment-friendly exterior wall tile strengthening process has the advantages of simple process, less construction difficulty, short construction period, low labor intensity of workers and less construction risks, the risk that the tiles are divorced from the wall space to drop out from high altitude can be completely solved, the problem that anouter wall is smashed to be installed again can be avoided, the discharge of construction waste can be reduced from the root, the environment is protected, and the construction cost is saved. The noise pollution caused by smashing the tiles with a traditional process and the environmental pollution caused by generated dust can be avoided, the generation of haze can be reduced, thereby contributing to building a better city.