To provide a container for medical waste in which it is possible to stably stack without falling down and to safely transport as well as into which wastes can be thrown easily and surely.

In an inflammable triple structure container formed of an inner compartment 1 in which medical wastes are put, a waterproof bag 2 in which this inner compartment 1 is wrapped, and an outer compartment 3 in which these inner compartment 1 and waterproof bag 2 are contained, the outer compartment 3 is formed of an outer compartment body 3a, a lid plate 3c, and a holding plate 3d, a lid plate 3c is continuously placed in a bendable way on the upper edge of a side plate portion 3a" of the outer compartment body 3a, further the holding plate 3d is continuously placed in a bendable way in both edges of the lid plate 3c and in the upper edge of a side plate portion 3a" situated on both side of the side plate portion 3a", respectively, and is formed in a foldable way by giving the holding plate 3d a fold.