The advantages and feasibility of Beidou high-precision satellite positioning technology applied to the deformation monitoring of airport high fill engineering are introduced firstly. Then a deformation monitoring system based on the Beidou satellite positioning is designed for airport high fill engineering. In this deformation monitoring system

high-precision satellite positioning is realized by using the carrier phase difference technology. With the 4th generation mobile communication technology

deformation monitoring data is transmitted to the cloud server. This realizes automatic remote monitoring. For the purpose of making the power supply stable

solar panel and colloidal battery are used in the high fill airport deformation monitoring system. In order to determine the daily measurement time of monitoring equipment

a test is designed to study the relationship between Beidou satellite vertical measurement precision and positioning time. The test results show that the vertical precision of Beidou satellite static relative positioning is above 3.6 mm when the daily positioning time is 60 minutes. This precision meets the standard of airport high fill engineering deformation monitoring. And if the monitoring time is continued to increase

the precision will have little improvement. Use timing switch to set up monitoring equipment arranged in airport working 70 minutes automatically every day.