本文对南宁市味精厂的废炭用电化学法进行再生研究，通过测定其亚甲基蓝脱色力和碘的吸附力（碘值），来评定再生炭的性能。发现再生电压为２４～３０Ｖ，电流密度约为５０Ａ·ｍ－２，再生炭的亚甲基兰脱色力是新炭脱色力的９４％，碘值是新炭的９７％。为工厂废炭的再生利用提供了一种简单实用的方法。 In this paper, the regeneration of waste carbon from MSG factory in Nanning was studied by electrochemical method. The methylene blue decolorization force and iodine adsorption (iodine value) were measured to evaluate the performance of recycled carbon. It was found that the regeneration voltage was 24 ~ 30V and the current density was about 50A · m-2. The methylene blue decolorizing power of regenerated carbon was 94% of that of new carbon and the iodine value was 97% of that of new carbon. It provides a simple and practical method for the recycling of industrial waste.