The invention discloses a method for recovering tungsten carbide and cobalt in waste hard alloy. The method comprises the following steps: mixing waste hard alloy, graphite and metallic cobalt, and smelting to complete fusion, and cooling to obtain block alloy; taking the block alloy as an anode and a graphite plate or an electric conduction metal sheet as a cathode, carrying out electrochemical dissolution in acid electrolyte, then, obtaining tungsten carbide in the anode, and obtaining cobalt in the cathode. According to the method, anode passivation is unlikely to happen in an electrolysisprocess, and in addition, the recovery of the tungsten carbide and the cobalt is realized.