In　order　to　improve　the　seismic　capacity　of　bridge　piers　in　service　period,　the　seismic　performances　of　bridge　piers　strengthened　with　polyvinyl　alcohol-engineered　cementitious　composite　(PVA-ECC)　were　investigated.　Five　circular　pier　specimens　with　a　shear　span　ratio　of　4.2　were　tested　by　quasi-static　tests.　Based　on　the　failure　modes　and　seismic　performance　indicators,　the　seismic　performances　of　specimens　strengthened　with　PVA-ECC　were　analyzed.　Furthermore,　the　influences　of　both　axial　compression　ratio　and　PVA　fiber　volume　content　on　the　seismic　performances　of　piers　were　discussed.　The　experimental　results　show　that　PVA-ECC　obviously　improves　the　failure　modes　and　controls　the　width　and　development　of　crack.　This　material　also　enhances　the　damage　tolerance　and　bearing　capacity　of　bridge　piers.　Therefore,　the　piers　perform　good　ductility　and　energy　dissipation　capacity.　With　the　increase　of　axial　compression　ratio,　the　bearing　capacity　of　piers　strengthened　with　PVA-ECC　is　increased.　However,　the　displacement　ductility　coefficient　and　energy　dissipation　capacity　are　obviously　reduced.　With　the　increase　of　PVA　fiber　volume　content,　the　hysteretic　curve　of　piers　strengthened　with　PVA-ECC　is　fuller.　It　effectively　improves　the　ductility　and　energy　dissipation　capacity　of　bridge　piers.　©　2021,　Editorial　Office　of　Journal　of　Vibration　and　Shock.　All　right　reserved.