In thia study, wear resistance of P-V cast iron which is used as a material of cylinder liner for marine engine was investigated. Wear test was conducted by the wear test machine of Suzuki type(EFM-III-E model, 5000N for load, 4.0㎧ for velocity, Japan). Adhesive and scuffing wear phenomena was studied when load was changed from 60N to 400N and wear velocity was 0.25㎧ at room temperature and 250℃. In the case of dry friction at room temperature, scuffing phenomena of wear test specimens without vanadium was occurred at 400N, specimens with vanadium at the 400N was observed only adhesive wear phenomena. In the case of dry friction at 250℃, scuffing phenomena was observed at 180N for wear specimens without vanadium and 240N for wear specimens with vanadium.