High-cycle　fatigue　loading　combined　with　chloride　exposure　was　studied　with　a　close　investigation　of　reinforcement　ratio　(1.06%,　1.59%,　2.91%)　and　fatigue　load　level　(0.20.5).　This　study　conducts　both,　experimentally　and　service　life　modeling　based　on　the　Monte-Carlo　simulation.　Results　show　that:　(1)　high-value　fatigue　loads　expedite　the　chloride　ingress　of　compressive　concrete;　(2)　at　the　load　level　of　≥　0.4,　chloride　ingress　of　tensile　concrete　significantly　increases　and　service　life　decreases　≥　93%;　(3)　although　reinforcement　ratio　of　1.59%　decreases　the　chloride　ingress　of　tensile　concrete,　varying　the　reinforcement　ratio　rarely　affects　the　service　life.　©　2020　Elsevier　Ltd