A razor cartridge comprising: at least one razor blade having a cutting edge (41, 46); a blade housing including a front portion, a rear portion formed opposite the front portion, and a left side portion and a right side portion configured to connect the front portion and the rear portion, the blade housing being configured to accommodate the at least one razor blade; a guard bar disposed at the front portion of the blade housing; and a cap disposed at the rear portion of the blade housing, wherein the blade housing includes at least one support member (70a, 70b) configured to connect the front portion and the rear portion and spaced apart from the left side portion and the right side portion in a longitudinal direction, along which the cutting edge (41, 46) extends; a plurality of seating protrusions (71, 72) disposed on the at least one support member (70a, 70b) and configured to seat the at least one razor blade; characterized in that: the plurality of seating protrusions (71, 72) include a plurality of first seating protrusions having a first height and a plurality of second seating protrusions having a second height lower than the first height; the plurality of first seating protrusions and the plurality of second seating protrusions are aligned along a transverse direction perpendicular to the longitudinal direction; and each of the at least one razor blade is seated between a corresponding one of the first seating protrusions and a corresponding one of the second seating protrusions. at least one razor blade having a cutting edge (41, 46); a blade housing including a front portion, a rear portion formed opposite the front portion, and a left side portion and a right side portion configured to connect the front portion and the rear portion, the blade housing being configured to accommodate the at least one razor blade; a guard bar disposed at the front portion of the blade housing; and a cap disposed at the rear portion of the blade housing, wherein the blade housing includes at least one support member (70a, 70b) configured to connect the front portion and the rear portion and spaced apart from the left side portion and the right side portion in a longitudinal direction, along which the cutting edge (41, 46) extends; a plurality of seating protrusions (71, 72) disposed on the at least one support member (70a, 70b) and configured to seat the at least one razor blade; characterized in that: the plurality of seating protrusions (71, 72) include a plurality of first seating protrusions having a first height and a plurality of second seating protrusions having a second height lower than the first height; the plurality of first seating protrusions and the plurality of second seating protrusions are aligned along a transverse direction perpendicular to the longitudinal direction; and each of the at least one razor blade is seated between a corresponding one of the first seating protrusions and a corresponding one of the second seating protrusions. the plurality of seating protrusions (71, 72) include a plurality of first seating protrusions having a first height and a plurality of second seating protrusions having a second height lower than the first height; the plurality of first seating protrusions and the plurality of second seating protrusions are aligned along a transverse direction perpendicular to the longitudinal direction; and each of the at least one razor blade is seated between a corresponding one of the first seating protrusions and a corresponding one of the second seating protrusions.