The invention provides an electrochemical treatment method for an
arsenic poisoning catalyst. The electrochemical treatment method comprises: (1) mixing an alkali and a
solvent or mixing an alkali solution and an
arsenic poisoning catalyst to obtain a mixture; (2) placing the mixture as an
electrolyte in an electrochemical reaction device, carrying out an electrochemical reaction, and introducingan oxidizing gas into the
electrolyte during the electrochemical reaction; and (3) carrying out
solid-liquid separation on the
reaction product obtained in the step (2) to obtain the
arsenic-containing solution. According to the present invention, the method has advantages of high extraction rate of arsenic, cleaning property, no
pollution, mild process condition, low cost and low requirements onequipment; the
impurity is not introduced so as to conveniently perform the subsequent separation; the concentration of the used alkali is low so as to reduce the alkali consumption; and the
automation degree is high so as to reduce the manpower input, the good economic and
social benefits can be provided, and the good application prospect can be provided.