The invention discloses a multi-functional diaper, comprising a piece of bottom cloth, and an absorbing core layer, wherein a covering layer is covered outside the absorbing core layer, and the upper surface of the covering core layer is provided with at least two water-permeable excrement partition layers. Lower adhering points are arranged on the water-permeable excrement partition layers, and each water-permeable excrement partition layer is lapped in turn. The invention can be reused for many times, has convenient use, can reduce the resource waste and the environmental pollution, and can obviously reduce the use costs.