Protection method and device for concrete faced rockfill dam toe board copper water stop

The invention discloses a protection method and device for concrete rockfill dam toe board copper water stop. The protection method comprises the steps of setting a protection box and multiple groups of supporting tripods fixed through bolts and concretes to prevent deformation and displacement of the copper water stop, and setting foamed plastics and buffer wood blocks in the protection box to prevent the copper water stop from being damaged when suffering from larger impacts of external forces; the protection device to which the protection method applies comprises a protection box, the multiple groups of supporting tripods are arranged below the protection box, and a buffer device is arranged in the protection box; the buffer device comprises the foamed plastics and the buffer wood blocks; each group of the supporting tripods comprises a transverse reinforcement, a longitudinal reinforcement and a slant reinforcement, an installing angle iron is arranged on the longitudinal reinforcement, a limiting reinfor