The inhibition effect of Chamaemelum Nobile extract on corrosion of mild steel electrode in 1.0 molar hydrochloric acid was studied using gravimetric analysis and electrochemical methods. Results from the experimental studies have shown that, as the inhibitor concentration increases the inhibition efficiency. The adsorption of the inhibitor molecules on mild steel surface obeys Langmuir adsorption isotherm. Scanning electron microscope performed a surface study with and without inhibitors for mild steel. From all the results in this research, we found that Chamaemelum Nobile extract was an attractive alternative to prevent corrosion as it shows the great inhibition efficiency.