A detachable pocket combined with a picket is provided to be carried conveniently by being utilized as a pocket in ordinary times and to be used as a picket for preventing an accident when a user crosses a road. A detachable pocket combined with a picket includes a first Velcro adhesion portion(21) and a pocket body(20). The first Velcro adhesion portion is formed to have a predetermined area and is attached to a predetermined position of clothes or accessory. An opening portion is formed on one side of the pocket body. The pocket body has a receiving space. A second Velcro adhesion portion corresponding to the first Velcro adhesion portion is formed on the pocket body. A safety letter or image is inserted into one surface of the pocket body. The surface of the pocket body is made of a reflective or noctilucent body.
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