An image heating apparatus comprising: a cylindrical film; a heater provided in an inner space of said film, the heater includes a substrate and a heat generating element (301-1, 301-2) provided on the substrate; a roller forming a nip portion in cooperation with the heater through the film; a supporting member for supporting said heater; a high heat-conductive member having a higher thermal conductivity than the heater, wherein the high heat-conductive member is sandwiched between said heater and said supporting member; and wherein said heater is configured to heat a recording material on which an image is formed by heat from said heater at the nip portion, and wherein the image heating apparatus characterized in that said supporting member has a bottom region where said supporting member supports said heater, wherein said bottom region includes two first regions, where said supporting member contacts with said high heat-conductive member so as to apply pressure between said heater and said high heat-conductive member, and a second region, where said supporting member is recessed from said high heat-conductive member, and is provided between said two first regions, and wherein, with respect to a movement direction of the recording material, one of said two first regions is provided at uppermost stream portion of the bottom region and another of said two first regions is provided at most downstream portion of the bottom region, and wherein with respect to the movement direction of the recording material, a position of said heat generating element (301-1, 301-2) overlaps with a position of a part of said first regions and a position of a part of said second region. a cylindrical film; a heater provided in an inner space of said film, the heater includes a substrate and a heat generating element (301-1, 301-2) provided on the substrate; a roller forming a nip portion in cooperation with the heater through the film; a supporting member for supporting said heater; a high heat-conductive member having a higher thermal conductivity than the heater, wherein the high heat-conductive member is sandwiched between said heater and said supporting member; and wherein said heater is configured to heat a recording material on which an image is formed by heat from said heater at the nip portion, and wherein the image heating apparatus characterized in that said supporting member has a bottom region where said supporting member supports said heater, wherein said bottom region includes two first regions, where said supporting member contacts with said high heat-conductive member so as to apply pressure between said heater and said high heat-conductive member, and a second region, where said supporting member is recessed from said high heat-conductive member, and is provided between said two first regions, and wherein, with respect to a movement direction of the recording material, one of said two first regions is provided at uppermost stream portion of the bottom region and another of said two first regions is provided at most downstream portion of the bottom region, and wherein with respect to the movement direction of the recording material, a position of said heat generating element (301-1, 301-2) overlaps with a position of a part of said first regions and a position of a part of said second region.