Abstract: Combined with the disturbed state concept proposed by Desai,the consolidation line of the structured soils could be divided into two linear parts in loglog plot.Based on the fold beelines model,an apropriate parameter for structured soils,termed structured parameter was presented.This parameter could describe fraction of plastic work stored under compression,and the difference of mechanical behavior between overconsolidated soils and structured soils.It was shown that the normal consolidation pressure could be determined by the energy theory.