Geotechnical engineers face various problems while designing foundation because of clayey soil due to poor bearing capacity and excessive settlement. So, we rectify that with various engineering works but in this project we choose fibers for improving soil parameters, this method is cost effective and eco-friendly one. The clay sample was collected from Devakottai, Tamil Nadu, India. Sisal, polypropylene, and hybrid of these two fibers were used for soil stabilization. The sisal fiber was mixed 0 .1%, 0.2%, 0.3% and 0.4% by weight of the soil samples. Similarly, polypropylene fiber was mixed 0.5%, 1%, 1.5% and 2% by weight of the soil samples and hybrid fiber mixed soil samples randomly distributed. The effect of fiber addition on soil stabilization was evaluated by conducting tests such as Atterberg’s limits, Standard Proctor compaction test, Unconfined Compressive strength test, Specific gravity test, and California bearing ratio test