An axial flow fan that has blades each having a bend bent to the negative pressure surface side of an outer periphery of each blade and in which a leakage flow in a region near the rear edge of the bend is smoothened to reduce the scale of a vortex of the leakage flow itself and to effectively suppress turbulence of the flow. The axial flow fan has a bell mouth (5), and the outer periphery of theblade (13) of the fan is bent to the negative pressure (13e) side. In a region near the rear edge of the bend (13c) that is bent to the negative pressure surface (13e) side, there is provided a second bend (13f) formed by further bending a part of the bend (13c) toward the negative pressure surface (13e) side.