The invention discloses a buffering and conveying mechanism capable of preventing ore from directly impacting a guide chute of a skip bucket ore bin. The buffering and conveying mechanism is formed bycombining an accumulated material buffering chute device with an ore conveying device. The accumulated material buffering chute device is composed of 2-5 accumulated material buffering chutes (2) mounted on a bottom manganese steel plate (1) of the guide chute at a feed inlet of the skip bucket ore bin at intervals. Each accumulated material buffering chute (2) formed by a bottom plate (3), a blocking plate (4) and end rib plates at the two ends through welding. Corresponding chain wheel sets (8) are separately arranged at the two ends of a feeding baffle (7) and are in transmission connection through a circulating conveying chain (9). The feeding baffle (7), the chain wheel sets (8), the circulating conveying chain (9) and guide plates (10) form the ore conveying device jointly. The buffering and conveying mechanism is simple in structure; the form of hitting ore with ore is adopted, the impact force of large ore to the manganese steel plate of the guide chute is greatly reduced through an ore buffering layer, and abrasion of the feed inlet is completely avoided; and meanwhile, the service life of the guide chute is prolonged.