An object of the present invention is to provide a combined bedding bag that becomes a bag for storing baby products when folded and becomes a bedding on which an infant can lie down when unfolded. Accordingly, the diaper bag combined with baby bedding according to an embodiment of the present invention includes: a main body formed to be spread to a predetermined size; A plurality of cutouts formed at predetermined intervals along the inner edge of the body; a strap portion that is alternately disposed on and connected to the lining and the outer fabric of the body through a plurality of incisions; A first coupling member provided at both ends of the diameter of the body, the first coupling member is formed to match the linings abut each other when the body is folded; and a plurality of pairs of second coupling members provided on both sides of the coupling position of the first coupling member to match each other and provided outside the rim of the main body so that the outer fabric is in contact with each other and detached. It is formed between the coupling members and characterized in that it is formed so as not to overlap on the same line from the center of the body.
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