The automotive sector has experienced significant expansion in recent times. Currently, automobile manufacturers are offering their products to the general public at a reduced price. The price of the vehicle is contingent upon the materials employed in its fabrication. Researchers are currently focused on the advancement of novel materials that exhibit a combination of desirable attributes, including adequacy, cost-effectiveness, lightweight, recyclability, high explicit strength, non-abrasiveness, environmental friendliness, exceptional mechanical properties and biodegradability. Natural composites derived from seeds, leaves and tree barks are used in several engineering applications. This study investigates the mechanical properties of epoxy composites reinforced with jujube pits treated with sodium hydroxide. To enhance the properties, alkaline treatment was done, and the results of the tensile test, flexural test and impact strength test were compared with untreated composites. The results indicate that alkaline treatment enhances the tensile strength, flexural strength and impact strength of the composites compared to untreated composites. This suggests that treated jujube pit composites could be a sustainable and cost-effective alternative for various engineering applications.