To prevent generation of loud noise during unloading operation, to prevent occurrence of any load collapse caused by shocks, and to prevent any space from being formed between a cargo and a back wall part of a container or the like or between cargoes.

A cargo feeding apparatus has an unloading support mechanism for supporting the unloading operation of a cargo M on a conveying roller from a front end of a movable table 5 onto a cargo receiving face. In the cargo unloading support mechanism, guide mechanisms 90a, 90b are arranged at the front end of the movable table 5. The guide mechanisms 90a, 90b have a right and left rocking plate 95 supported in a collapsible manner so as to be collapsed forward, and a spring 99 for urging the rocking plate 95 in an upright posture. A feed roller 96 is horizontally provided between upper ends of the right and left rocking plates 95 at the position lower than the conveying roller. A guide plate 98 projecting forward is provided parallel to the feed roller 96 at the position in a vicinity of the front side of the feed roller 96.