In order to study the shear strength characteristics of saturated soft clay under different degree of consolidation, the stress-strain controlled triaxial shear permeability tester was used to carry out triaxial shear tests of saturated soft clay under different degree of consolidation. The effects of different degree of consolidation under different confining pressures on pore pressure increment and shear strength of soil were analyzed. The results show that in partial undrained shear tests, the lower the pre-shear consolidation degree and the larger the pre-shear hole pressure, the smaller the pore pressure increment caused by shear, but the larger the total hole pressure and the lower the undrained strength. By normalization, the correlation between pore pressure increment and consolidation degree is obtained.