An automotive frame part for being provided to a side portion of an automotive body and absorbing crashworthiness energy by bending upon receiving a crashworthiness load from a side of the automotive body, the automotive frame part comprising: a member having a hat-shaped cross section or a U-shaped cross section, the member including a top portion, and a pair of side wall portions that are continuous from the top portion via punch shoulder R portions; resin that is coated on or patched to an internal surface of the member having the hat-shaped cross section member or the U-shaped cross section, and a release prevention member that is disposed, in order to prevent the resin from being released from the internal surface during the process in which the member bends by ensuring that the resin is nipped on the internal side of the punch shoulder R portions in the bending portions of the member, in a manner straddling over the top portion and covering a surface of the resin, and that has both ends joined to internal surfaces of the pair of side wall portions, wherein the coated or patched resin extends at least to a predetermined range toward the top portion and the side wall portions on both sides of the punch shoulder R portions, the coated or patched resin is adhered, after heating, to the internal surface and the release prevention member at an adhesive strength of 10 MPa or higher at a room temperature, and the release prevention member is a less strong member than the hat-shaped cross section member or the U-shaped cross section. a member having a hat-shaped cross section or a U-shaped cross section, the member including a top portion, and a pair of side wall portions that are continuous from the top portion via punch shoulder R portions; resin that is coated on or patched to an internal surface of the member having the hat-shaped cross section member or the U-shaped cross section, and a release prevention member that is disposed, in order to prevent the resin from being released from the internal surface during the process in which the member bends by ensuring that the resin is nipped on the internal side of the punch shoulder R portions in the bending portions of the member, in a manner straddling over the top portion and covering a surface of the resin, and that has both ends joined to internal surfaces of the pair of side wall portions, a top portion, and a pair of side wall portions that are continuous from the top portion via punch shoulder R portions; resin that is coated on or patched to an internal surface of the member having the hat-shaped cross section member or the U-shaped cross section, and a release prevention member that is disposed, in order to prevent the resin from being released from the internal surface during the process in which the member bends by ensuring that the resin is nipped on the internal side of the punch shoulder R portions in the bending portions of the member, in a manner straddling over the top portion and covering a surface of the resin, and that has both ends joined to internal surfaces of the pair of side wall portions, wherein the coated or patched resin extends at least to a predetermined range toward the top portion and the side wall portions on both sides of the punch shoulder R portions, the coated or patched resin is adhered, after heating, to the internal surface and the release prevention member at an adhesive strength of 10 MPa or higher at a room temperature, and the release prevention member is a less strong member than the hat-shaped cross section member or the U-shaped cross section.