In the field of aerospace vehicle manufacturing， embedded nuts served as crucial fasteners，whose performance and quality were directly related to the safety and reliability of aerospace vehicles.This is especially true for composite sandwich structures， where embedded nuts played an even more critical role.Based on composite honeycomb sandwich structures，this paper conducted research on the installation angle of embedded nuts，glue injection methods，glue injection speed，as well as the protective measures after glue injection，and analyzed the influence laws of these factors on the installation quality of embedded nuts.The results show that adopting the direct glue injection method，injecting glue 3 times with 10 min intervals，increasing the glue injection speed， and implementing protection after glue injection are conducive to improving the installation quality of embedded nuts.Moreover，the design scheme with an installation angle of 0° is preferred.This study provides a systematic technical foundation for the application of embedded nuts in composite sandwich structural components of domestically manufactured aircraft.