In　coastal　environments,　uneven　corrosion　can　occur　in　both　the　circumferential　and　radial　directions　of　bridge　piers.　Using　the　actual　project　as　the　background,　ABAQUS　was　used　to　establish　a　bridge　pier　calculation　model,　and　the　validity　of　the　numerical　simulation　was　verified　by　four　completed　shaking　table　tests　of　inhomogeneously　corroded　bridge　piers;　combined　with　the　Monte　Carlo　sampling　method,　five　bridge　pier　models　with　different　corrosion　locations　and　different　corrosion　areas　were　designed　to　study　the　influence　of　inhomogeneous　corrosion　on　the　seismic　performance　and　damage　mode　of　bridge　piers.　The　results　show　that:　as　the　total　corrosion　area　increases,　the　influence　of　corrosion　location　on　the　acceleration　and　displacement　response　of　the　pier　top　gradually　decreases;　within　a　certain　range,　the　total　corrosion　area　has　little　influence　on　the　energy　dissipation　capacity　of　the　bridge　pier;　corrosion　location　and　corrosion　area　affect　the　damage　mode　of　the　member　to　a　certain　extent.　This　study　investigates　bridge　pier　corrosion　from　the　perspective　of　the　spatial　distribution　of　circumferential　corrosion　of　bridge　piers,　and　provides　a　reference　for　the　study　of　the　degradation　process　of　corroded　coastal　piers.　©　2023　COMPDYN　Proceedings.　All　rights　reserved