The normal section bearing capacity-deformation curve of reinforced concrete T-shaped columns was simulated by finite element software, and the result was in good agreement with the test data. On this basis, the constitutive relation of reinforcingbar and concrete at different temperature were introduced into the T-shaped columns model,the normal section bearing capacity and deformation capacity of T-shaped columns at different temperatue were analyzed, and the influence of fire on normal section bearing capacity of reinforced concrete T-shaped columns was preliminary studied, which provide foundation for fire resistance of sepcially shaped columns.