An electrophotographic photosensitive member, comprising: a support; and a photosensitive layer formed on the support, wherein: the electrophotographic photosensitive member has a surface layer comprising a polymer whose repeating structural units consist of repeating structural units each represented by the following formula, and repeating structural units each represented by the following formula (a): where R 1 represents a hydrogen atom or a methyl group, R 2 represents a single bond or a divalent group, and Rf 1 represents a monovalent group having at least one of a fluoroalkyl group and a fluoroalkylene group; where R 101 represents a hydrogen atom or a methyl group, Y represents a divalent organic group, and Z represents a polymer unit, wherein 100% by number of the repeating structural units each represented by the formula in the polymer are represented by the following formula: where R 1 represents a hydrogen atom or a methyl group, R 20 represents an alkylene group, and Rf 13 represents a perfluoroalkyl group having 6 carbon atoms, and wherein a copolymerization ratio between the repeating structural units represented by the formula and the repeating structural units represented by the formula (a) is 99:1 to 20:80 in molar ratio. a support; and a photosensitive layer formed on the support, wherein: the electrophotographic photosensitive member has a surface layer comprising a polymer whose repeating structural units consist of repeating structural units each represented by the following formula, and repeating structural units each represented by the following formula (a): where R 1 represents a hydrogen atom or a methyl group, R 2 represents a single bond or a divalent group, and Rf 1 represents a monovalent group having at least one of a fluoroalkyl group and a fluoroalkylene group; where R 101 represents a hydrogen atom or a methyl group, Y represents a divalent organic group, and Z represents a polymer unit, wherein 100% by number of the repeating structural units each represented by the formula in the polymer are represented by the following formula: where R 1 represents a hydrogen atom or a methyl group, R 20 represents an alkylene group, and Rf 13 represents a perfluoroalkyl group having 6 carbon atoms, and wherein a copolymerization ratio between the repeating structural units represented by the formula and the repeating structural units represented by the formula (a) is 99:1 to 20:80 in molar ratio. the electrophotographic photosensitive member has a surface layer comprising a polymer whose repeating structural units consist of repeating structural units each represented by the following formula, and repeating structural units each represented by the following formula (a): where R 1 represents a hydrogen atom or a methyl group, R 2 represents a single bond or a divalent group, and Rf 1 represents a monovalent group having at least one of a fluoroalkyl group and a fluoroalkylene group; where R 101 represents a hydrogen atom or a methyl group, Y represents a divalent organic group, and Z represents a polymer unit, wherein 100% by number of the repeating structural units each represented by the formula in the polymer are represented by the following formula: where R 1 represents a hydrogen atom or a methyl group, R 20 represents an alkylene group, and Rf 13 represents a perfluoroalkyl group having 6 carbon atoms, and wherein a copolymerization ratio between the repeating structural units represented by the formula and the repeating structural units represented by the formula (a) is 99:1 to 20:80 in molar ratio.