The invention discloses a dishwashing detergent consisting of a component A and a component B, wherein the component A consists of 20 to 26 percent of sodium carbonate, 5 to 8 percent of sodium metasilicate pentahydrate, 5 to 8 percent of sodium tripolyphosphate, 10 to 17 percent of sodium hydroxide, 6 to 10 percent of sodium dodecyl benzene sulfonate, 2 to 3 percent of fatty alcohol-polyoxyethylene ether and 2-3 percent of dodecane phenol plyoxyethylene by the total quality of the product; the component B is 25 to 50 percent of sodium dichloro cyanurate by the total quality of the product. The above materials are only mixed and packed during the production; and when in use, the component A and the component B are only respectively dissolved in water. The invention has the advantages of simple production, easy use and no manual scouring needed and the like. Dishes can be cleaned satisfactorily only by soaking dishes in water solution for 5 to 15 minutes, and the vast majority of germscan be killed.