In order to study the rapid acquisition of laser links between aircrafts,the preliminary guide and acquisition process of polar light are analyzed.The model of maximum acquisition time is derived based on the relative speed and scanning by rows.And the parameters such as overlap factor,link distance,beam divergence,angle between relative speed and target sight line etc are analyzed.Based on the numerical simulation,the method of rapid laser link establishing is suggested,which is of directing significance for the ATP system′s design and practical application.