To provide a thick bedquilt cover by which a thick bedquilt can be easily housed in a housing bag and simplified labor to fix it in the housing bag.

In a thick bedquilt cover formed so that a thick bedquilt is housed in a housing bag 1 by forming a quadrangular housing bag 1 is formed of an upper texture 2 and a lower texture 3, opening parts 5, 7 and 11 are respectively formed on both side edges and one edge of the housing bag 1, and a connecting part 12 of the upper texture 2 and the lower texture 3 is formed on the residual one edge, and the opening parts 5, 7 and 11 are connected to each other by an opening 1 closing means, and fastening strings 13 to fix a thick bedquilt are arranged on four side edges in the housing bag 1.