Expansive soil behavior is swelling and shrinkage. These behavior of expansive soils subject to movement and distress. Therefore, structures on these form minor crack of roads or interior house. In present, a ground improvement widely use to solve expansive soil. In this study, that applied deep stabilization applications to mitigate swelling and shrinkage. These principle techniques base on decrease volume of expansive soil and increase the area treatment in the form of piles. The treatment was incorporated into the model through composite properties. In this paper, a study behavior the deep stabilization of an expansive soil by change area treatment ratio for techniques improvement. The procedure was divided into laboratory and physical model test. First part, the swelling potential and cement content were tested the conventional one-dimensional oedometer. these results of cement content were analyzed to select the cement content for shallow and deep treatment studies. The physical model tests were PVC conducted in a cylindrical mold of 300 mm diameter and 450 mm height. It was amplified from oedometer cell. To identify the appropriate area treatment ratio and make practical used in field for Improvement of expansive soils of deeper depth, That not impact the building.