The invention discloses a detachable mobile portable device for carrying articles on the back. The detachable mobile portable device for carrying the articles on the back comprises a back frame, a waist support, a protective piece, shoulder straps and a belt sleeve. The detachable mobile portable device for carrying the articles on the back is simple in structure and flexible and convenient to dismantle in use, enables a solder to carry the back frame on the back, is worn on the outside, is used for increasing the number of various kinds of ammunition, and has the advantages of being resistant to abrasion, light and convenient and the like.