Abstract: In order to deeply research aerodynamic performance for lift wind turbine and lift-drag wind turbine, based on the CFD software this article used k-ω SST turbulent model, adopted double moving mesh technology, carried out field calculation on lift wind turbine and lift-drag wind turbine, calculated their start-up wind speed and cut-in wind speed, research their aerodynamic performance under low wind speed. The result showed that lift-drag wind turbine had the larger starting torque, smaller cut-in wind speed and smaller start-up wind speed; lift-drag wind turbine was easier to start-up than lift wind turbine at low wind speed while the lift-drag wind turbine's output power was larger before stall, but its output power was lower than that of lift wind turbine after stall.