The aircraft is impact by severe weather on parking apron, and the aerodynamic research of parking is most important for parking safety. In order to analyze the aerodynamic difference of typical civil aircraft induced by ground cross-wind, and determine the typical Tie-Down loads, the paper aim at two typical civil aircraft layout, adopt scale mode and fixed ground plate in wind tunnel to simulate aircraft park, measure the aerodynamic forces of aircraft which induced by cross-wind with the angles from 0 to 180 degree, and furthermore use the disassemble test method to analyze the empennage aerodynamic coupling. The research confirm the empennage aerodynamic coupling is the reason of large pitching moment of high HTP layout and small pitching moment of low HTP layout at cross-wind, finally estimate the nose landing gear Tie-Down loads for rear tipping condition. In this paper, the aerodynamic characteristics of two typical civil aircraft on ground cross-wind are compared completely, it’s useful for the aerodynamic research of parking and taxing civil aircraft , which is significant for parking Tie-Down load analysis.