An electrically conductive resin composition, comprising 75 to 99 parts by mass of a thermoplastic resin (A) and 1 to 25 parts by mass of a carbon material (B), and also comprising more than 1 part by mass and 10 parts by mass or less of a modified polyolefin wax (C) based on 100 parts by mass of the total of the thermoplastic resin (A) and the carbon material (B), wherein the carbon material (B) is a particulate carbon material having an average particle diameter of 500 nm or less or a fibrous carbon material having an average length of 1,000 μm or less and the modified polyolefin wax (C) is a maleic anhydride-modified product or an air oxidation product of a copolymer of 87.0 to 99.9 mass% of ethylene and 0.1 to 13.0 mass% of at least one α-olefin selected from C 3-12 α-olefins, wherein the content ratio of the structural units is determined through analysis of the 13 C-NMR, and that has an acid number ranging from 1 to 100 mgKOH/g measured in accordance with JIS K0070, or a styrene-modified product of a copolymer of 87.0 to 99.9 mass% of ethylene and 0.1 to 13.0 mass% of at least one α-olefin selected from C 3-12 α-olefins, wherein the content ratio of the structural units is determined through analysis of the 13 C-NMR, and wherein a styrene amount of the modified polyolefin wax (C) ranges from 5 to 80mass%, calculated from the amount of styrenes added upon modification. the carbon material (B) is a particulate carbon material having an average particle diameter of 500 nm or less or a fibrous carbon material having an average length of 1,000 μm or less and the modified polyolefin wax (C) is a maleic anhydride-modified product or an air oxidation product of a copolymer of 87.0 to 99.9 mass% of ethylene and 0.1 to 13.0 mass% of at least one α-olefin selected from C 3-12 α-olefins, wherein the content ratio of the structural units is determined through analysis of the 13 C-NMR, and that has an acid number ranging from 1 to 100 mgKOH/g measured in accordance with JIS K0070, or a styrene-modified product of a copolymer of 87.0 to 99.9 mass% of ethylene and 0.1 to 13.0 mass% of at least one α-olefin selected from C 3-12 α-olefins, wherein the content ratio of the structural units is determined through analysis of the 13 C-NMR, and wherein a styrene amount of the modified polyolefin wax (C) ranges from 5 to 80mass%, calculated from the amount of styrenes added upon modification. a maleic anhydride-modified product or an air oxidation product of a copolymer of 87.0 to 99.9 mass% of ethylene and 0.1 to 13.0 mass% of at least one α-olefin selected from C 3-12 α-olefins, wherein the content ratio of the structural units is determined through analysis of the 13 C-NMR, and that has an acid number ranging from 1 to 100 mgKOH/g measured in accordance with JIS K0070, or a styrene-modified product of a copolymer of 87.0 to 99.9 mass% of ethylene and 0.1 to 13.0 mass% of at least one α-olefin selected from C 3-12 α-olefins, wherein the content ratio of the structural units is determined through analysis of the 13 C-NMR, and wherein a styrene amount of the modified polyolefin wax (C) ranges from 5 to 80mass%, calculated from the amount of styrenes added upon modification. <EOS>