Based on the course—the principles of track slip angle calibration technology and test three different slip angle measuring method (method strut front fuselage wind standard method and static differential pressure method),the results were summed up for the civil aircraft slip angle calibration . The slip angle is an important entering condition for many test subjects (lateral and directional static stability, yaw maneuver test, etc.)The Bureau requested that the sideslip angle calibration must be done , and completed during the aircraft design phase. So the author organized strut installation requirements related to the sideslip angle adjustment related to feasi-bility studies before the project preparation stage. The scientific approach in this paper has played an important role for other aircraft verification test technology of side slip angle calibration.