The invention relates to the technical field of management of dangerous wastes and particularly relates to a recycling method for heavy metal in electroplating sludge. The recycling method comprises the following steps: (1) adding acid and carrying out sludge leaching; regulating the pH (Potential of Hydrogen) value to obtain a mixture A; (2) carrying out filter pressing on the mixture A to obtainfilter residue a1 and filtrate b1; (3) adding iron powder into the filtrate b1 and carrying out the filter pressing to obtain metal copper and filtrate b2; (4) adding an oxidant and alkali into the filtrate b2 and carrying out the filter pressing to obtain iron-chromium residue and filtrate b3; (5) adding the oxidant and the alkali into the obtained iron-chromium residue and carrying out the filter pressing to obtain iron hydroxide and filtrate b4; (6) calcining the obtained ferric hydroxide to obtain iron oxide red; and (7) adding sulfuric acid and lead nitrate into the filtrate b4 and carrying out the filter pressing to obtain lead chromate and filtrate b5. The treatment method provided by the invention has a heavy metal recycling rate, relatively small secondary pollution caused in theprocess and low energy consumption.