Disclosed are a polyalkylene carbonate and polyolefin-based adhesive member and an adhesive structure including the same and, more particularly, an adhesive member manufactured using a mixed composition including polyalkylene carbonate, polyolefin, an initiator, and a blending aid, wherein an amount of the polyalkylene carbonate is 35 wt % to 65 wt %, a total amount of the initiator, the blending aid, and the polyolefin is 35 wt % to 65 wt %, and the adhesive member has a co-continuous morphology in which at least a portion of each of the polyalkylene carbonate and the polyolefin is exposed on an outer surface of the adhesive member and an adhesive structure including the same.