A sheet feeding device comprising: a stacking portion (15, 16) configured to stack a plurality of recording materials; a first roller configured to feed the plurality of recording materials stacked on said stacking portion (15, 16), one by one, wherein a first recording material which is an uppermost recording material is fed and a second recording material positioned under the first recording material is fed subsequently to passing of a trailing end of the first recording material so as to be partly overlapping with the first recording material; a second roller configured to feed the recording material fed by said first feeding roller; a third roller configured to form a nip in cooperation with said second roller, wherein said third roller is rotated to provide peripheral movement in a predetermined direction so as to feed the first recording material when the first recording material is fed to the nip and is stopped in rotation and is rotated to provide peripheral movement in a direction opposite to the predetermined direction when the first recording material and the second recording material are fed to the nip; detecting means configured to detect a rotational frequency per unit time of said third roller; driving means (2, 3) configured to execute a feeding operation by said first roller; and control means configured to provide an instruction to said driving means so as to cause said driving means (2, 3) to execute the feeding operation of the second recording material subsequently to the feeding operation of the first recording material when the rotational frequency of said third roller detected by detecting means is larger than a predetermined rotational frequency, and to provide an instruction to said driving means so as to stop the feeding operation when the rotational frequency of said third roller is smaller than the predetermined rotational frequency, characterized in that the predetermined rotational frequency is larger than 0 and is smaller than the rotational frequency of said third roller in a period in which said third roller is rotated in the predetermined direction in a state in which the first recording material is fed to the nip, wherein after the trailing end of the first recording material passes the first roller, the first roller is adapted to contact the second recording material and to start sheet feeding of the second recording material, wherein in that period the trailing end of the first recording material and a leading end of the second recording material are adapted to be fed to the nip between the second roller and the third roller in the partly overlapping state. a stacking portion (15, 16) configured to stack a plurality of recording materials; a first roller configured to feed the plurality of recording materials stacked on said stacking portion (15, 16), one by one, wherein a first recording material which is an uppermost recording material is fed and a second recording material positioned under the first recording material is fed subsequently to passing of a trailing end of the first recording material so as to be partly overlapping with the first recording material; a second roller configured to feed the recording material fed by said first feeding roller; a third roller configured to form a nip in cooperation with said second roller, wherein said third roller is rotated to provide peripheral movement in a predetermined direction so as to feed the first recording material when the first recording material is fed to the nip and is stopped in rotation and is rotated to provide peripheral movement in a direction opposite to the predetermined direction when the first recording material and the second recording material are fed to the nip; detecting means configured to detect a rotational frequency per unit time of said third roller; driving means (2, 3) configured to execute a feeding operation by said first roller; and control means configured to provide an instruction to said driving means so as to cause said driving means (2, 3) to execute the feeding operation of the second recording material subsequently to the feeding operation of the first recording material when the rotational frequency of said third roller detected by detecting means is larger than a predetermined rotational frequency, and to provide an instruction to said driving means so as to stop the feeding operation when the rotational frequency of said third roller is smaller than the predetermined rotational frequency, the predetermined rotational frequency is larger than 0 and is smaller than the rotational frequency of said third roller in a period in which said third roller is rotated in the predetermined direction in a state in which the first recording material is fed to the nip, wherein after the trailing end of the first recording material passes the first roller, the first roller is adapted to contact the second recording material and to start sheet feeding of the second recording material, wherein in that period the trailing end of the first recording material and a leading end of the second recording material are adapted to be fed to the nip between the second roller and the third roller in the partly overlapping state.