Mildew removal agent for wall and preparation method of mildew removal agent

The invention relates to a mildew removal agent for a wall and a preparation method of the mildew removal agent. The preparation method of the mildew removal agent for the wall comprises the following steps: firstly, water is added to a blending tank and stirred, sodium hydroxide, hexadecylsulfonic acid sodium salt and/or tetra sodium salt of amino trimethylene phosphonic acid, sodium bromide, EDTA-4Na, N,N-dimethyldodecylamine oxide and/or dimethyl tetradecyl amine oxide, alkyl dimethyl benzyl ammonium chloride and sodium silicate and/or sodium metasilicate are added to the blending tank, finally, sodium hypochlorite is added to the blending tank, the mixture is stirred uniformly, settles for 24 h and is filtered. A special detergent for clearing mildew and mildew stains can quickly kill mildew, remove mildew stains and prevent mildew from breeding again. The mildew removal agent in the formula has good decontamination and mildew killing capacity and can quickly clear mildew and other stains on the wall.