For confirm the effectiveness of CFG pile to reinforce soft soil roadbed, based on a practical project, through laboratory test and field test, the construction parameters of CFG pile vibration reinforcement soft soil foundation are studied, and the most favorable construction parameters are determined. The test results show that when the single vibration time is 160～200 s, the dry density reaches a higher value, and the dry density difference of the site test is about 0.054 g·cm3 . After 5～6 times of rolling, the maximum dry density is about 2.385 g/cm3 . After a certain vibration time (160 s) and rolling times (5～6 times), the moisture content of the composite foundation is basically unchanged. It can provide reference for similar projects.