A treatment method of waste active carbon produced in sucralose production process is as follows: first, intermediate sucralose-6-ester is taken and added with methanol for alcoholysis process and dealcoholization process to obtain a raw sucralose product, then the raw sucralose product is added with water for dissolving, after the raw sucralose product is dissolved completely, active carbon is added for decoloring, finally the waste active carbon is obtained by filtering; the waste active carbon produced in the sucralose production process is treated by first methanol recovery and then clean water recovery, filtrate in the treatment process is used as a solvent for reusing in intermediate sucralose-6-ester alcoholysis process and the redissolving process of the dealcoholized raw sucralose product, and finally, components of the recycled waste active carbon are detected, the usage of methanol is effectively reduced, the production environment and transportation environment safety hidden danger caused by the methanol can be reduced, the recycling effect of the sucralose in the waste active carbon is remarkable, operation is convenient, and good economic benefits are obtained.