Design of mixing ratio should be performed before any implementation of cement deep mixing works. In order to
study the influence of age，water-cement ratio and cement content on engineering properties of cement-stabilized soil，sensitivity
study was applied with grey relational analysis. It is revealed that cement content has the most significant influence on the
strength and water content of cement-stabilized soil while the water-cement ratio has the most significant influence on the density
of cement-stabilized soil.