The invention provides a mercury-free and lead-free environment-friendly button cell and a manufacturing method of the mercury-free and lead-free environment-friendly button cell. The mercury-free and lead-free environment-friendly button cell comprises an anode shell, an anode material, a sealing rubber ring, a cathode cover, a cathode material and a membrane for separating the anode material and the cathode material, wherein the anode material is arranged at the bottom inside the anode shell; the membrane is arranged above the anode material; the cathode cover is connected with the anode shell through buckling; the sealing rubber ring for separating the cathode cover and the anode shell is arranged between the cathode cover and the anode shell; the cathode material is arranged between the cathode cover and the membrane. The mercury-free and lead-free environment-friendly button cell is characterized in that the cathode cover is formed by buckling an outer cathode cover and an inner cathode cover, wherein a metallic material not performing hydrogen evolution reaction with the cathode material is electroplated on the surface of the inner cathode cover. According to the mercury-free and lead-free environment-friendly button cell and the manufacturing method, the air expansion and fluid leakage conditions of the cell can be prevented, the percent of pass of the product is increased, and the cathode cover is divided into the inner cathode cover and the outer cathode cover; the inner cathode cover and the outer cathode cover are electroplated respectively, so that the electroplating difficulty can be reduced, and the cost is effectively reduced.