In this paper, many kinds of flow control is introduced from the working principle, lift enhancing efficiency and the application. The flow control includes vortex generators on flap, spoiler deflection, ZHU’s flap, self-activated movable flap, zero mass actuation, plasma actuators, dynamical lift enhancing, and so on. The analysis results indicate that, these flow control technique has great potential for improving the lift enhancing efficiency of civil aircraft.