In a food dough forming device according to the present invention, a dough forming flow path is formed to be enclosed between at least two rotatable rollers and between two wall plates. At least one of the at least two rotatable rollers is at least one long rotatable roller (31A, 32A). At least one remaining rotatable roller is at least one short rotatable roller (33A, 31B, 32B, 33B). A far-side wall plate (53) of the two wall plates has a fitting recess (53A, 53B) into which an arc portion of a periphery of the long rotatable roller is fitted, and a recessed cutout (53C, 53D, 53E, 53F) at the rotational shaft for the short rotatable roller. The short rotatable roller is fitted onto the rotational shaft for the short rotatable roller to abut the far-side wall plate. The nearside wall plate is disposed to abut the short rotatable roller. An axial movement of the short rotatable roller is limited by the two wall plates.