Because vertical deformation of reclaimed soil compression rate is difficult to accurately forecast,relying on a large number of large area in Tianjin region reclaimed land ground treatment engineering,we obtain corresponding reclaimed soil compression ratio by calculatiing settlement of vacuum preloading foundation treatment monitoring data.The soil compression ratio,the weighted average of the volume of the soil in situ and physical mechanical parameters are analyzed in multiple regression.The mathematical model formula for predicting the reclaimed soil compression rate formula according to the in-situ soil dredged soil level and four main associated physical mechanics parameters is obtained.The effective prediction of vacuum prepressure volume compression in Tianjin area is realized.