To provide a resin hose which is strong to bending by an external force without impairing flexibility of a hose itself, which can maintain a diameter of a water running path, and which assures simplicity of working at piping installation time and improvement in durability.

The resin hose is mainly used for water supply/piping for hot water supply. The resin hose includes a tube in an internal layer 1 made of a thermoplastic resin, a reinforcing layer 2 in which metal hard wires or a fiber yarns are coarsely woven or spirally coarsely wound on the outer periphery of the tube, and a covering layer 3 made of a thermoplastic resin coated on the outer periphery of the reinforcing layer 2. The covering layer 3 is adhered to the tube in the internal surface layer 1 through the gap of the reinforcing layer 2.