In　order　to　ensure　the　security　and　stability　of　soft　subgrade,　the　observation　of　soft　subgrade　settlement　must　be　conducted.　Additionally　the　deformation　for　soft　soil　subgrade　settlement　should　be　studied　further.　then　the　roadbed　settlement　calculation　and　prediction　methods　could　be　perfected.　Based　on　this,　the　reliability　of　calculation　and　accuracy　of　prediction　for　settlement　could　be　finally　improved.　In　this　paper,　the　subgrade　settlement　data　is　measured　based　on　a　highway　construction　project.　The　hyperbolic　model,　Asaoka　model,　Weibull　model,　and　Pearl　model　are　utilized　to　predict　the　roadbed　settlement　of　typically　roadbed　sections　for　different　treatments.　The　errors　of　four　models　between　the　predict　values　and　measured　values　are　analyzed.　The　results　show　that　the　Asaoka　model　method　correctly　predict　the　subgrade　settlement　of　engineering　project,　the　predict　values　are　suitable　to　the　practical　situation　of　engineering.　©　2016　ejge.