Abstract: To avoid approach congestion due to rapid increase of air traffic flows, reduce delays and make fulluse of the runway capacity, schedulingmodels available in literature were simplified. The minimum radar intervals defined by theGeneralAdministration ofCivilAviation ofChinawas taken as the safe intervals between two aircrafts. The effect of aircraft speed on the safe interva,l estimated arrival time and priority of an aircraftwere analyzed. A new approach scheduling model based on earliest estimated arrival time and its algorithm was proposed. A calculation example shows that the newmodel and its algorithm give better approach schedulingwith obvious less computation.