A flexible display module and a display device are provided. The flexible display module includes: a flexible substrate; a display layer, disposed on the flexible substrate; a reinforcement layer, disposed on a side of the display layer distal to the flexible substrate; and a protective layer, disposed on a side of the reinforcement layer distal to the flexible substrate; where material of the reinforcement layer is different from material of the protective layer, and a thickness of the protective layer ranges from 5 μm to 300 μm.