A charging member comprising: an electro-conductive substrate (1; 101) and an electro-conductive surface layer, wherein: the surface layer comprises a matrix including a binder resin and an electro-conductive fine particle, and a resin particle dispersed in the matrix, the charging member has a protrusion derived from the resin particle on a surface thereof, the resin particle includes a plurality of electro-conductive domains inside thereof, characterized in that the electro-conductive domains are localized in the vicinity of the surface of the resin particle, wherein the definition of "the electro-conductive domains are localized in the vicinity of the surface of the resin particle " is as follows: (i) assuming that the resin particle is solid, a circle having an area equal to the area of the cross section passing through the center of gravity of the assumed solid resin particle is determined, and its concentric circle whose diameter is 0.8 times the length of the diameter of the above-determined circle is also determined; (ii) an area of a doughnut-shaped portion between the circle and the concentric circle is determined; (iii) in the cross section passing through the center of gravity of the assumed solid resin particle, a region surrounded by the surface of the assumed solid resin particle and a line equally spaced from the surface is defined so as to have an area equal to that of the doughnut-shaped portion; (iv) in a case where the region defined in the step (iii), includes more than 50% of the electro-conductive domains appearing in the cross section based on the number of electro-conductive domains, it is defined that the electro-conductive domains are localized in the vicinity of the surface of the resin particle. an electro-conductive substrate (1; 101) and an electro-conductive surface layer, the surface layer comprises a matrix including a binder resin and an electro-conductive fine particle, and a resin particle dispersed in the matrix, a matrix including a binder resin and an electro-conductive fine particle, and a resin particle dispersed in the matrix, the charging member has a protrusion derived from the resin particle on a surface thereof, the resin particle includes a plurality of electro-conductive domains inside thereof, characterized in that the electro-conductive domains are localized in the vicinity of the surface of the resin particle, wherein the definition of "the electro-conductive domains are localized in the vicinity of the surface of the resin particle " is as follows: (i) assuming that the resin particle is solid, a circle having an area equal to the area of the cross section passing through the center of gravity of the assumed solid resin particle is determined, and its concentric circle whose diameter is 0.8 times the length of the diameter of the above-determined circle is also determined; (ii) an area of a doughnut-shaped portion between the circle and the concentric circle is determined; (iii) in the cross section passing through the center of gravity of the assumed solid resin particle, a region surrounded by the surface of the assumed solid resin particle and a line equally spaced from the surface is defined so as to have an area equal to that of the doughnut-shaped portion; (iv) in a case where the region defined in the step (iii), includes more than 50% of the electro-conductive domains appearing in the cross section based on the number of electro-conductive domains, it is defined that the electro-conductive domains are localized in the vicinity of the surface of the resin particle. (i) assuming that the resin particle is solid, a circle having an area equal to the area of the cross section passing through the center of gravity of the assumed solid resin particle is determined, and its concentric circle whose diameter is 0.8 times the length of the diameter of the above-determined circle is also determined; (ii) an area of a doughnut-shaped portion between the circle and the concentric circle is determined; (iii) in the cross section passing through the center of gravity of the assumed solid resin particle, a region surrounded by the surface of the assumed solid resin particle and a line equally spaced from the surface is defined so as to have an area equal to that of the doughnut-shaped portion; (iv) in a case where the region defined in the step (iii), includes more than 50% of the electro-conductive domains appearing in the cross section based on the number of electro-conductive domains, it is defined that the electro-conductive domains are localized in the vicinity of the surface of the resin particle.