To provide an LED lighting device solving problems like color unevenness and luminance unevenness and having less loss and high efficiency.

In the LED lighting device having at least one LED light source 2 and a reflector 4 reflecting the light emitted from the LED light source, the reflecting face 4A of the reflector 4 is constructed of a plurality of convex curved surfaces 4a and is made of a rotation curved surface which surrounds the LED light source 2 and expands in an light emitting direction from the light source 2, and the dimensions are set so that the light from the LED light source 2 may be reflected only once by each of the convex curved surfaces 4a. Further, the plurality of the convex curved surfaces 4a are structured of a part of spherical surfaces having different curvatures. Furthermore, curvature radiuses of the plurality of convex curved surfaces are set to be larger as they are separated from the LED light source 2.