Abstract: Angle of attack(AOA) sensor orientation for civil aircraft has been researched in this paper. According to the requirements of AOA sensor orientation in Chinese aviation industry standard HB regulations, the sideslip sensitive analysis method and AOA calibrating analysis method have been developed. Air flow fields have been calculated with the conventional nose configuration and streamline nose configuration by numerical simulation, and the sideslip sensitive analysis and AOA calibrating analysis have been used to obtain the most proper location to install the AOA sensor. An identical AOA sensor installing rule has been obtained with two different nose configurations i. e. the optimized position of AOA sensor is in the nose maximum half-breadth range of 48%-100% in stream-wise direction. The installing rule has been applied to the conventional nose configuration. Moreover, a validated wind tunnel test has been conducted. The test results of sideslip sensitivity and AOA calibration showed significant agreement with CFD results, which implying the analysis methods and relevant AOA sensor installing rule are applicable. Furthermore, the obtained method and rule have the potential to be utilized on any other aircrafts with similar nose configuration.