Based on the Receding Horizon Control (RHC)model a tactical decision-making method was proposed for the air combat.Firstly the set description of detecting superiority and attacking superiority was given based on combat situation and operational capability of the fighter.The quantitative evaluation function was established and the tactical decision-making object set was acquired.Then an index function for decision-making was constructed taking the tactic superiority maneuvering time and control cost into consideration.After that a numerical solution was given based on the direct multiple shooting method.The simulation result shows that tactical decision-making model based on RHC can effectively reach the attack condition while avoiding the threats and the solution can satisfy the real-time requirement.