A finite-time flight control strategy based on the sliding mode method is proposed for the hovering problem under uncertainty and external disturbance in the attitude and position control of the unmanned helicopters.Firstly,the 6 Degrees of Freedom (6-DOF) model of the unmanned helicopter is analyzed,and the model is divided into a position model and an attitude model.Secondly,the model is simplified in the hovering state,and according to the characteristics between position and attitude and the control requirements,non-singular terminal sliding mode and integral sliding mode are used to design the position controller and the attitude controller respectively,and it is proved that the system error can converge to the equilibrium point in finite time under the framework of Lyapunov theory.Finally,the simulation analysis shows that the control strategy has good control performance.