Abstract: Based on reviewing the published papers on the multi-reaction of lime-soil system, this paper makes a wide range of discussed on the physio-mechanical properties of stabilized soil. Besides the macro-properties, the micro-mechanism of strengthened soil is also studied. With powder X-ray diffraction, it has been shown that the cementitions material—Calcium Silicate( Aluminate) Hydrate (CS(A)H) is produced by the slowly lime-soil reaction during long curing time or high temperature circumstance, using prosimetry analysis, it is suggested that the cemetitions material increases in quantity with the curing time and results in a gradual replacement of capillary pore space with fine gel pores. The micro-fabric of soil samples indifferent ages under the scanning electric microscope sheds some light on setting the relation between strength increase and curing time, that is the producing of CSH gel, then forms a poorly crystallized material which can make a strong bonding of soil particles. Other chemical additives’ role in increasing strength and factors that may possiblely influence the effect of lime stabilization in practical application are also approached.