As a wide-area enhancement method, the satellite-based augmentation system can provide civil aviation with lower-cost and higher-availability navigation functions. The research and development of airborne equipment with SBAS function, which meets the requirements of civil aviation, conforms to the development trend of GNSS. The airborne processing algorithm of the BDSBAS is analyzed and sorted out in the paper, flight test data of developed airborne equipment with SBAS function from the perspective of accuracy and integrity is analyzed and evaluated, which flight test carried out in Tianjin airport in May 2021. The results show that the developed airborne equipment can meet the accuracy requirements of the APV-I approach under the current BDSBAS signal, and there was no integrity abnormality during the test.