To investigate the effect of lean/bowed vane configurations on the aerodynamic performance and unsteadiness in transonic high-pressure turbine, the full three dimensional viscous unsteady numerical simulation were performed by solving N-S equations based on SAS SST method．The influence of bowed /lean vanes on turbine efficiency and efficiency fluctuation were investigated, and the action of vane modeling to the aerodynamic total perturbation level and the amplitude of each vane passing frequency were analyzed. The linking of the pressure fluctuation on blade surface with flow distortions was accomplished by comparing instantaneous pressure fluctuation contours of blade with space-time maps, which can reveal the mechanism of the influence of the vane modeling. The results indicate that the turbine efficiency is promoted with positive lean and bowed vane modeling, and the fluctuation of stage turbine is repressed, which is beneficial to the smooth running of the turbine stage. The aerodynamic disturbance on the rotor blade is dominated by the moving of vane trailing edge shock system, and the vane modeling can reduce the perturbation level on the rotor blade. For the positive lean vane, the unsteadiness at the root and tip region is reduced by the reduction of the amplitude of the first harmonic, but it is reduced by the reduction of the amplitude of second and higher harmonic at the middle region. For the positive bowed vane, unsteadiness is repressed by reducing the amplitude of third harmonic at the root region, and the first harmonic at the tip region and the amplitude of each harmonic is reduced at the middle region.