The invention provides an alkali liquor leakage treating agent which comprises the following components in percentage by weight: 60-95 percent of reacting substance, 5-40 percent of adsorbing substance, 0.1-5 percent of flow agent and 0.01-0.1 percent of indicator. The alkali liquor leakage treating agent has loose texture, is not easy to agglomerate and can quickly and effectively treat and cureleaked alkali liquor. Substances after reaction are close to neutral and can be harmlessly discarded. The alkali liquor leakage treating agent can solve the problem of leakage of strong alkali and weak alkali such as high-concentration sodium hydroxide, potassium hydroxide, ammonia water, and the like, can be applied to various production fields using alkali solutions, such as chemical plants, electronics factories, machine-building plants, and the like, and can also be used for treating alkali liquor splashing and leakage caused in the process of laboratory experiments and alkali liquor transportation.