The invention provides a cathode cover surface treatment method of the Hg-free alkaline zinc manganese and the zinc silver button cell, including the following steps: 1. deoiling the cathode cover ofthe commodity and cleaning by water; 2. putting the cleaned cathode cover into the activate fluids for activation, then cleaning by water after activation; 3. contacting the metallic zinc with the activated cathode cover; 4. putting the cathode cover and the metallic zinc in the strongly alkaline solution soaking step (3) containing the indium ion; 5. coating a layer of zinc indium alloy on the surface of the cathode cover under certain temperature and time; 6. cleaning and drying the coated cathode cover. The invention uses the contact coating theory and the replacement coating theory to directly prepare the zinc indium alloy of the hydrogen-eduction overpotential with good property on the cathode cover without the DC source and the reducer, which saves the resource and reduces the pollution, the metallic zinc with lower cost is adopted to partially replace indium with higher expensive, and the reclaimed bath and the metallic zinc can be used again to reduce the production cost.