In this paper, the stabilization of studied dune sands was made by compaction and addition of stabilization agents; cement and fillered sand. The cement percentage ranges from 2 to 10% with a step of 2%, and that of the fillered sand from 0 to 30% with a step of 10%, sixty mixtures have been prepared. For each mixture, the optimal normal Proctor, the porosity accessible to water, the compressive strength, the splitting tensile strength and the elasticity modulus were investigated. The data so developed were statistically analyzed in order to examine the influence of the dune sand origin and the proportioning of stabilization agent on the porosity, and establish the links between porosity, the maximum dry density and the mechanical behavior (MB) of stabilized dune sands. Through the results obtained, relationships between porosity, the maximum dry density and the mechanical behavior were performed in an acceptable manner, irrespective of the dune sand origin and the stabilization agent content.