A vehicular component comprising a resin-made impact absorption member, the resin-made impact absorption member comprising: an impact absorption portion which includes a fiber-reinforced resin material containing reinforcing fibers and a thermoplastic resin and which has a hollow structure including an outer cylindrical portion and a hollow portion, wherein an impact absorption direction is defined as the direction coaxial to the through direction of the hollow structure of the impact absorption portion, wherein the reinforcing fiber has an average fiber length of 1 mm to 100 mm, the thermoplastic resin has a fracture elongation as measured in accordance with JIS K7162:1994 of equal to or greater than 10%, the fiber-reinforced resin material has a compressive elastic modulus as measured in accordance with JIS K7076:1991 of equal to or greater than 10 GPa and a compressive strength as measured in accordance with JIS K7076:1991 of 150 MPa to 500 MPa, and wherein, in the impact absorption portion, a maximum value of a ratio (L1/t1) of a distance from a position of the center of gravity to the midpoint in the thickness direction of the outer cylindrical portion on a same section in a sectional shape in a direction orthogonal to the impact absorption direction, to a thickness of the outer cylindrical portion, is equal to or less than 40, wherein, in the impact absorption portion, a plurality of resin shaped products (21, 22) which have flange portions (21a, 22a) and include the fiber-reinforced resin material, are combined to form a boundary portion as the flange portions come into contact with each other, wherein an impact absorption auxiliary portion which includes a resin material formed to cover the boundary portion, is further provided, and wherein the boundary portion is covered with the impact absorption auxiliary portion so as to have a space between an end surface of the boundary portion and an inner surface of the impact absorption auxiliary portion, at least at a part thereof. an impact absorption portion which includes a fiber-reinforced resin material containing reinforcing fibers and a thermoplastic resin and which has a hollow structure including an outer cylindrical portion and a hollow portion, wherein an impact absorption direction is defined as the direction coaxial to the through direction of the hollow structure of the impact absorption portion, wherein the reinforcing fiber has an average fiber length of 1 mm to 100 mm, the thermoplastic resin has a fracture elongation as measured in accordance with JIS K7162:1994 of equal to or greater than 10%, the fiber-reinforced resin material has a compressive elastic modulus as measured in accordance with JIS K7076:1991 of equal to or greater than 10 GPa and a compressive strength as measured in accordance with JIS K7076:1991 of 150 MPa to 500 MPa, and wherein, in the impact absorption portion, a maximum value of a ratio (L1/t1) of a distance from a position of the center of gravity to the midpoint in the thickness direction of the outer cylindrical portion on a same section in a sectional shape in a direction orthogonal to the impact absorption direction, to a thickness of the outer cylindrical portion, is equal to or less than 40, wherein, in the impact absorption portion, a plurality of resin shaped products (21, 22) which have flange portions (21a, 22a) and include the fiber-reinforced resin material, are combined to form a boundary portion as the flange portions come into contact with each other, wherein an impact absorption auxiliary portion which includes a resin material formed to cover the boundary portion, is further provided, and wherein the boundary portion is covered with the impact absorption auxiliary portion so as to have a space between an end surface of the boundary portion and an inner surface of the impact absorption auxiliary portion, at least at a part thereof.