In this paper, the finite element software ABAQUS was used to simulate numerically the loading ca- pacity of 26 locally corroded concrete filled circular steel tubular (CFST) under axial loads, which was compared with that of non-corroded specimens. The parameters including the location of localized corrosion, the circum- ferential angle and the axial distance between localized corrosion were analyzed to study the influence of local ized corrosion on the axial compressive performance of the columns and to find out the most disadvantageous conditions under the action of three factors. The result showed that for a single localized corrosion pit, axial compressive loading capacity was the lowest when the pit was located in the middle of the member. When the corrosion pit location was farther away from the middle part of the specimen, its bearing capacity was larger. For two corrosion pits, the axial compressive loading capacity of the partially corroded circular steel tubular columns increased with the increase of the circumferential distance between the two corrosion pits, but decreased first and then increased with increasing the axial distance between the two pits.