An electroconductive member (15, 25) for electrophotography comprising: an electroconductive support layer (14, 24); and a surface layer (12, 22) thereon, wherein: the surface layer (12, 22) has a network structure containing fibers, the fibers having an arithmetic mean value d U10 of top 10% fiber diameters, of the fiber, of 0.2 μm or more and 15.0 μm or less as measured at arbitrary 100 points in an SEM observed image of the fiber, wherein: the electroconductive support layer (14, 24) has a rigid structural body (13, 23), and in a cross section in a thickness direction of the electroconductive member (15, 25), the rigid structural body has a height of 1.0 × 10 -2 to 1.0 × 10 1 times as large as a thickness of the surface layer (12, 22), and wherein: the surface layer (12, 22) satisfies the following to: when the surface layer (12, 22) is observed in such a manner as to face the surface layer, one or more crossings of the fibers are observed in each of arbitrary 100 square regions having one side length of 1.0 mm on a surface of the surface layer; when the surface layer (12, 22) is observed in such a manner as to face the surface layer, at least a part of the rigid structural body (13, 23) is observed in each of arbitrary 100 square regions having one side length of 1.0 mm on the surface of the surface layer; and when a Voronoi tessellation is performed with generating points, the generating points being the fibers exposed on a cross section in a thickness direction of the surface layer (12, 22), each of areas of Voronoi polygons resulting from the Voronoi tessellation is defined as S 1, each of cross-sectional areas in the cross section of the fibers as the generating points of the respective Voronoi polygons is defined as S 2, and a ratio "S 1 /S 2 " is calculated, an arithmetic mean value k U10 of top 10% of the ratios is 40 or more and 160 or less. an electroconductive support layer (14, 24); and a surface layer (12, 22) thereon, wherein: the surface layer (12, 22) has a network structure containing fibers, the fibers having an arithmetic mean value d U10 of top 10% fiber diameters, of the fiber, of 0.2 μm or more and 15.0 μm or less as measured at arbitrary 100 points in an SEM observed image of the fiber, wherein: the electroconductive support layer (14, 24) has a rigid structural body (13, 23), and in a cross section in a thickness direction of the electroconductive member (15, 25), the rigid structural body has a height of 1.0 × 10 -2 to 1.0 × 10 1 times as large as a thickness of the surface layer (12, 22), and wherein: the surface layer (12, 22) satisfies the following to: when the surface layer (12, 22) is observed in such a manner as to face the surface layer, one or more crossings of the fibers are observed in each of arbitrary 100 square regions having one side length of 1.0 mm on a surface of the surface layer; when the surface layer (12, 22) is observed in such a manner as to face the surface layer, at least a part of the rigid structural body (13, 23) is observed in each of arbitrary 100 square regions having one side length of 1.0 mm on the surface of the surface layer; and when a Voronoi tessellation is performed with generating points, the generating points being the fibers exposed on a cross section in a thickness direction of the surface layer (12, 22), when the surface layer (12, 22) is observed in such a manner as to face the surface layer, one or more crossings of the fibers are observed in each of arbitrary 100 square regions having one side length of 1.0 mm on a surface of the surface layer; when the surface layer (12, 22) is observed in such a manner as to face the surface layer, at least a part of the rigid structural body (13, 23) is observed in each of arbitrary 100 square regions having one side length of 1.0 mm on the surface of the surface layer; and when a Voronoi tessellation is performed with generating points, the generating points being the fibers exposed on a cross section in a thickness direction of the surface layer (12, 22), each of areas of Voronoi polygons resulting from the Voronoi tessellation is defined as S 1, each of cross-sectional areas in the cross section of the fibers as the generating points of the respective Voronoi polygons is defined as S 2, and a ratio "S 1 /S 2 " is calculated, an arithmetic mean value k U10 of top 10% of the ratios is 40 or more and 160 or less.