In order to investigate the eccentric compression performance of polypropylene (PP) fiber reinforced concrete column under the combined action of load-sulfate attack, an eccentric compression experimental research was carried out on eight PP fiber reinforced concrete columns and one ordinary concrete column. The loaddeformation curve, load- steel strain curve, and strain of column section were obtained, and the effect of different stress ratios and corrosion time on failure modes, ductility and peak load was analyzed. The results showed that the addition of PP fiber can effectively inhibit the sulfate corrosion. The increase of stress ratio was raised at first and then reduced with the peak load. As the corrosion time increased, the peak load increased first and then decreased with the decrease rate by 15.8% for time from 120 d to 150 d. Meanwhile, the ductility coefficient increased first and then decreased with the increase in corrosion time, while decreasing with the increase in stress ratio. And the coeffi? cient at 150 d was reduced by 15.79% compared with that at 60 d. Considering the damage caused by stress ratio and sulfate attack, a damage factor was introduced to establish the calculation formula of concrete compressive strength after the combined action of load-sulfate erosion. Furthermore, considering the contribution of tensile strength of PP fi? ber, an equivalent rectangular stress diagram was used. Finally, the equivalent coefficient of tensile zone was utilized to establish the bearing capacity formula for PP fiber reinforced concrete column under the combined action of loadsulfate attack. In addition, a maximum crack width formula concerning the influence of PP fibers and sulfate corrosion was also established. The theoretical results calculated by the above formulae agreed well with the test results.