To provide a method for disposal of disposable containers such as an insertion pot, a urinal, a spittoon, and a pus basin to be used mainly in medical facilities such as hospitals and health care facilities for the aged.

Disposable containers such as an insertion pot, a urinal, a spittoon, and a pus basin which are made of water soluble recycled paper and a crusher 13 having an agitation tank 9, city water supply/drain parts 10, 11 for the tank, the agitation tanks 9, and a supply/drain part operation/control part 12 are constituted, and for the disposable containers and the crusher 13, water is supplied to the agitation tank. The used containers are charged into the agitation tank. When the containers are crushed into pieces by the operation of the agitation tank, the drain part 11 is operated.