Abstract: A storage container is disclosed. A storage container according to one aspect of the present invention comprises: a cover; and a container body, wherein the cover is provided with a locking wing on one side thereof so as to be rotatable, wherein the container body is provided with an edge which protrudes on a side surface thereof, wherein an edge end portion is formed at the edge, wherein the edge end portion has an upper engaging groove and a lower engaging surface, wherein one side of the upper engaging groove is open, wherein the cover is provided with a side surface protrusion which is engaged with the lower engaging surface when the cover is coupled to the container body, and with an engaging protrusion which is inserted into the upper engaging groove when the cover is separated from the container body.