An object is to provide a mold-clamping apparatus which can reduce the dimension in the axial direction. The apparatus includes a first stationary member to which a stationary mold (15) is attached; a first movable member disposed in opposition to the first stationary member and to which a movable mold (16) is attached; a second movable member which is advanced and retreated in association with advancement and retreat of the first movable member; a mold-clamping-force transmission member connecting the first and second movable members; and a drive section which opens and closes a mold, the drive section advancing and retreating the first movable member to thereby effect mold opening and closing. The drive section which opens and closes the mold overlaps at least a portion of the mold-clamping-force transmission member. In this case, since the drive section which opens and closes the mold overlaps at least a portion of the mold-clamping-force transmission member, the axial dimension of the mold-clamping apparatus (10) can be reduced.