PROBLEM TO BE SOLVED: To provide a material supplying mechanism for continuous sintering facility that can make a continuous sintering facility compact as a whole by shortening the longitudinal length of the facility as much as possible. SOLUTION: This material feeding mechanism supplies materials (S) carried in a replacing room (2) from a transportation conveyor (1) into the furnace casing (4) of the continuous sintering facility by means of a loading pusher (3). In the mechanism, the conveyor (1), room (2), and pusher (3) are arranged so that the transporting direction of the materials (S) by means of the conveyor (1) and the transporting direction of the materials (S) into the furnace casing (4) from the room (2) by means of the pusher (3) may become linear. The loading pusher (3) and its driving device are installed in the underfloor section of the replacing chamber (2) so that the pusher (3) may come up to the floor of the room (2) and move forward and backward on the floor at the time of supplying the materials (S) into the furnace casing (4).