The present invention provides a carton structure, comprising: a confined body portion having four side wall portions formed by four rectangular boards, and bending portions formed between the side wall portions; a top cover at top of the confined body portion and configured to match therewith; a bottom cover at bottom of the confined body portion and configured to match therewith; wherein at least two supporting members attached onto surfaces of the bending portions; two upper and lower areas at outer surfaces of the side wall portions adjacent to the bending portions are formed of at least two openings and two folding portions correspondingly; the openings and the folding portions are connected to each other; and the folding portions can be pushed and bent toward outer surface of the supporting members in order to reach inner surface of the supporting members to be further secured onto the supporting members.