A high-pressure fuel supply pump comprising an electromagnetic intake valve having a fixed core, an anchor that faces the fixed core in a direction along a central axis and is biased to a side away from the fixed core, and an electromagnetic coil, the high-pressure fuel supply pump causing a magnetic attractive force to act between a fixed core facing surface of the fixed core facing the anchor and an anchor facing surface of the anchor facing the fixed core to drive the anchor toward the fixed core and change a discharge amount of fuel as the electromagnetic coil is energized, wherein the fixed core has a protrusion protruding to the anchor side on the fixed core facing surface, in a state where the anchor is stationary when the electromagnetic coil is not energized, a minimum distance between the protrusion of the fixed core and the anchor facing surface is configured to be smaller than an axial gap dimension configured between the fixed core facing surface and the anchor facing surface in a direction along the central axis, and the protrusion is located on a radially outer side with respect to an outer peripheral surface of the anchor or a radially inner side with respect to an inner peripheral surface of the anchor without contacting the anchor in a state where the anchor abuts on the fixed core when the electromagnetic coil is energized, wherein the protrusion is formed to be positioned on an outer peripheral side of the fixed core facing surface, wherein the anchor facing surface is formed perpendicular to the central axis, and the minimum distance is configured between an outer periphery of the anchor facing surface and the protrusion, characterized in that: the protrusion is formed as a tapered surface, in which an outer peripheral surface reduces in diameter from a tip end portion side in a protruding direction toward a side of the fixed core facing surface. the fixed core has a protrusion protruding to the anchor side on the fixed core facing surface, in a state where the anchor is stationary when the electromagnetic coil is not energized, a minimum distance between the protrusion of the fixed core and the anchor facing surface is configured to be smaller than an axial gap dimension configured between the fixed core facing surface and the anchor facing surface in a direction along the central axis, and the protrusion is located on a radially outer side with respect to an outer peripheral surface of the anchor or a radially inner side with respect to an inner peripheral surface of the anchor without contacting the anchor in a state where the anchor abuts on the fixed core when the electromagnetic coil is energized, wherein the protrusion is formed to be positioned on an outer peripheral side of the fixed core facing surface, wherein the anchor facing surface is formed perpendicular to the central axis, and the minimum distance is configured between an outer periphery of the anchor facing surface and the protrusion, characterized in that: the protrusion is formed as a tapered surface, in which an outer peripheral surface reduces in diameter from a tip end portion side in a protruding direction toward a side of the fixed core facing surface.