To improve convenience of treatment itself and also solve the danger of exposition of a treating person to infection risk, in the treatment of a vomit polluted by bacteria, virus, etc.

The agent for solidifying and disinfecting vomit is prepared by formulating a highly water-absorbing polymer with an inorganic mineral matter and a disinfecting agent. The agent for solidifying and disinfecting vomit reduces infection risk by reacting with the fluid which the vomit contains with a disinfecting ingredient and disinfecting the vomit polluted by bacteria and virus, etc. and also improves convenience of treating operation by solidifying water with the highly water-absorbing polymer.