The invention provides a dirty clothes basket which comprises a dirty clothes bag and a support. The dirty clothes bag comprises an expandable bag body which is arranged on the support after being expanded. The components of the bag body comprise a surface active agent and an assistant. The surface active agent comprises, by weight, 11-20 parts of sodium alkyl benzene sulfonate, 3-12 parts of fatty alcohol-polyoxyethylene ether and 3-8 parts of alpha-alkenyl sulphonate. The assistant comprises, by weight, 10-25 parts of sodium carbonate, 20-35 parts of sodium sulfate, 0.1-0.5 part of alkaline protease, 10-20 parts of zeolite, 2-6 parts of sodium silicate and 25-45 parts of water-soluble polymer. When the dirty clothes basket is used, the dirty clothes bag and dirty clothes in the dirty clothes bag are together put in a clothes washer, the dirty clothes bag can be dissolved in the clothes washer, using is convenient and fast, the dirty clothes bag is disposable, so that cleanliness is better achieved, life fun is added, and resources are saved.