Scene target conflicts uncouple problem is the difficult problem of airport surface operation. A mixed integer programming model is proposed based on genetic algorithm. The impact of waiting time weight coefficients on the conflict uncouple is studied. For the satisfied waiting time constraints，the sliding time will be optimized；otherwise，it will consider the typical conflict avoiding，the slide rules and safety intervals as the constraints. The scene sliding schedule optimization model is established，and the liberation optimization algorithm of the aircraft conflict path is proposed based on genetic algorithm. The experimental results reveal that the proposed method not only can improve the uncouple efficiency of scene target conflicts，but also can achieve the sliding optimal path，which has verified the feasibility of the model.