To provide a meat filling machine automatically filling meat such as roast in a plastic tube 11.

This meat filling machine has such a mechanism that a flat tube 11 is pinched with a pinching mechanism and opened, the pinching mechanism moves toward a nozzle 9, the open tube 11 is put on the nozzle 9 and meat such as roast is filled in the open tube 11. As for a desirable practical example, a pair of rollers are used for the pinching mechanism, and each roller is arranged in a line along the horizontal plane, rotates in the direction opposite to each other and touches the upper surface of the flat tube 11, and its upper surface is pinched between the rollers.