The invention provides a recycling technology for valuable metals in electrolytic zinc leach residues. The technology comprises the steps that waste residues, water, sulfuric acid and hydrogen peroxide are added into a superfine grinding mill and then ground to be put into a stirring tank, water is added into the mixing tank, sulfuric acid and hydrogen peroxide are supplied sufficiently, stirring is carried out on the normal pressure condition, an extract is filtered, residues are washed, liquid obtained through filtration is heated and concentrated, solid zinc sulfate is obtained through cooling and filtration, and a zinc sulfate product is obtained through drying; then the liquid is heated, and sponge cadmium is generated after zinc powder is added to obtain a cadmium product; the solid obtained through filtration is placed into an electrolytic cell, a chloride and a catalyst are added, and lead is leached in a cathode region; then waste residues and wastewater are processed. The invention further provides the electrolytic cell adopted by the recycling technology for valuable metals in the electrolytic zinc leach residues. According to the recycling technology, metals of lead, zinc and cadmium can be efficiently recycled, the cost is greatly reduced, and harm to the environment is greatly lowered; The recycling technology has the wide development prospect and can be applicable to electrolytic zinc leach residues accumulated in different regions all the year round and some refractory oxidized ores.