Abstract: A door back hanging organizer device comprising an upper locating plate, an lower locating plate, belt, and a fixing plate. The upper and lower locating plates are respectively located at the both ends of the belt, each of locating plate having two lines of bending holes for selective bending of the locating plate at either line of the bending holes into an inverted U-shaped configuration for convenient fixation of the locating plate on the top and bottom of a door body. The belt can be adjusted for length and tension. The fixing plate has two slots at upper and lower ends and a hook with a channel at the upper rear end thereof. Two devices can be used together with the fixing plates being arranged respectively at right and left sides of the door installation of a cross hanging rod and a net bag therebetween by way of the channel in two hooks appropriately arranged on the right and left devices. Accessories, such as a hanging ring, can be attached to the device by way of the hooks.