A long-strip-shaped hanger made of fiber by molding comprises a main body (1), a raised-relief and recessed-relief structure support body (2), and a hanger hook (3). The raised-relief and recessed-relief structure support body (2) is in a shape of a long strip, and protrudes from two ends towards the middle; the raised-relief and recessed-relief structure support body (2) is provided with a support structure therein; the main body is in a concave cavity shape, and is sleeved outside the raised-relief and recessed-relief structure support body (2); the hanger hook (3) is fixedly provided at the top of the hanger. The hanger has a raised-relief and recessed-relief cavity structure made through the fiber molding technology, so as to fully meet the rigidity requirements for use in families, factory mass production, supermarkets, and exhibition display. The main body of the hanger is made of degradable, renewable and recyclable raw fiber materials. When the hanger is damaged, the material can be naturally degraded in the nature or can be renewed and recycled, so as not to incur any pollution to the environment, thereby complying with the environmentally friendly concept. The metal components such as the hook and the clamping piece of the hanger can all be recycled, thereby incurring no waste.