[Purposes] The aim of the paper is to elucidate the mechanism by which local pitting influences the fatigue performance of wind barriers. [Methods] This study investigated fatigue performance with coastal wind barriers as research objects. A fatigue performance analysis model for wind barriers was established using the harmonic superposition method and computational fluid dynamics (CFD) technology, accounting for both random fluctuating wind time histories and train-induced fluctuating wind time histories. The Palmgren-Miner linear cumulative damage theory was applied, and the remaining fatigue life of the wind barriers was calculated using Fe-safe software. A systematic parameter analysis was conducted to investigate the influence patterns of key parameters-pitting depth, width, number, and spacing-on the fatigue performance of wind barriers. [Findings] The fatigue life of wind barriers exhibits a significant linear decrease with increasing pit depth and an upward trend with increasing pit width. An increase in pit number leads to a marked reduction in fatigue life, while pit spacing has a relatively minor impact on life. The geometric shape of hemi-ellipsoidal pits influences the fatigue performance of wind barriers by altering the characteristics of local stress concentration. [Conclusions] This study elucidates the damage mechanism of wind barriers under the coupled action of local pitting and fatigue loading, providing theoretical foundations and data support for fatigue life assessment and reliability analysis of corroded wind barriers.