Abstract：The consolidation state of soft soil is of significance for evaluation of deformation and strength of foundation soil. The consolidation state of soft soil in the coastal area of Fujian Province is differentiated by static cone sounding. For the normal consolidation state，the fitting beeline of static cone sounding of soft soil between cone resistance and test depth intersects the x-coordinate at the origin approximately；for the overconsolidation state，intersects the positive x coordinate；and for the underconsolidation state，intersects the negative x coordinate. The consolidation state of soft soil can be differentiated by the intercept of the line. The consolidation state of soft soil，tested by in-situ static cone sounding，fits the actual condition of soft soil；and the method can be used for the evaluation of the consolidation state of soft soil.
