Combined with Savonius rotor is an important way to improve starting performance of straight-bladed vertical axis wind turbine (SB-VAWT). The starting performance of the combined type VAWT was largely affected by the combining angle of the two type turbines. Firstly, an SB-VAWT with NACA0018 and FX63-145 airfoils and a Savonius rotor were made and their starting performances were respectively tested. Then, optimal starting performance area of Savonius rotor was respectively combined with optimal starting performance area and the worse starting performance of SB-VAWT, starting performances of combined type VAWT with four different combining ways were tested by using a wind tunnel. For SB-VAWT with symmetrical airfoils, better starting performance of combined type VAWT can be obtained when its optimal starting performance area was combined with Savonius rotor. For SB-VAWT with asymmetric airfoils, both of the two ways have advantages and disadvantages. 