Abstract: The consolidated drained triaxial tests are carried out to study the mechanical properties and the deformation characteristics of reconstituted saturated soft clay under drained condition. Based on the assumption that the hardening parameter is independent of the stress path, a new yield equation is proposed by adopting the Green’s formula for curve integral. Therefore, a constitutive model is established for the reconstituted saturated soft clay. For the purpose of validation, the programming calculations by MATLAB, which take use of the new constitutive model, are compared to the test results from both the studied reconstituted soft clay and Fujinomori clay, which is reported in the literature. It is shown that the new constitutive model can describe well the strength behaviors and deformation characteristics of reconstituted saturated soft clay under drained condition. And, the theoretical calculations are in good consistence with the test results.