Abstract: An ionic wind propeller has the characteristics of being simple in structure, quietness, and miniaturization, and thus has broad prospect. Previous studies on thrust and thrust to power ratio (T/P) of ionic wind propeller lack systematic researches on a variety of factors, as well as experimental data for multi-electrode array. In this work, the effects of electrode shape and size, electrode array structure on thrust and T/P were studied. With the wire electrode diameter of 0.2~0.6mm, the airfoil electrode chord length of 50~70mm, and the shape of NACA0010 or NACA0020, it can be found that reducing the wire electrode diameter or increasing the radius of curvature of airfoil electrode can increase the thrust, but decrease T/P; while increasing the chord length of airfoil electrode can achieve not only a higher thrust but also a higher T/P. When the electrode array group spacing is 80~240mm, the smaller the spacing, the higher the thrust and T/P. When the electrode arrays pair spacing is 100~200mm, the smaller the spacing, the lower the thrust and T/P. For the rectangular arrangement, the 1×n structure has the maximum thrust and T/P for a given number of electrodes. In this work, the measured thrust of the propulsion electrode array is 3.2N, which lays a foundation for the flight propulsion test of ionic-wind driven aircraft.