Reducing metal corrosion has practical, financial, environmental, and aesthetic benefits. The usage of corrosion inhibitors is highly recommended. Since organic corrosion inhibitors leave behind dangerous chemicals in the environment, researchers have been seeking for non-toxic, biodegradable substitutes. Products made from plants have several advantages, including low cost, vast availability, and an endless supply of new products. They also have positive effects on the environment and are generally well-accepted by society. There has been investigation into the anticorrosive properties of phytochemicals in plants. Weight-loss methods and isotherm adsorption are used to examine the corrosion-inhibiting characteristics of Phoenix pusilla extract of leaves in 1M HCl solutions. The results showed that extracts have significantly reduced corrosion. The inhibitory effectiveness increased with increasing extract concentration. Adsorption isotherms and weight-loss study results support the existence of the adsorption mechanism (Temkin and Freundlich). The corrosion of steel is mimicked by using a plant extract in acidic circumstances. Results show that Phoenix pusilla leaf extracts have anti-corrosive capabilities and may improve surface protection by preventing active areas on metal.