Abstract: A multi-constrained attitude maneuver planning method based on logarithmic potential function is proposed in this paper for attitude maneuver problem of deep space explorer. Firstly, two kinds of pointing constraints-forbidden constraint and mandatory constraint are defined, which are used to build alogarithmic potential function. This logarithmic potential function is chosen as the Lyapunov function. On this basis an attitude maneuver controller is designed via the improved back-stepping method.Numerical simulation results show that by this method, a safe attitude maneuver path could be autonomously planned out under complex constraints, and computational efficiency meets the requirements. So it has practical application for deep space explorer with limited resources.