To provide a ground-leveling float for a paddy field-farming vehicle, capable of more effectively conducting leveling work in paddy fields than ever.

This ground-leveling float 3 for leveling the surface of the paddy field is attached to working machinery 1 which is connected to the rear side of the paddy field-farming vehicle having drive wheels 2. The bottom of the ground-leveling float is equipped with a pair of guide vanes 14 for guiding and transporting paddy streams of the paddy field to furrows 16 which are formed on the surface of the field by drive wheels 2 when the vehicle travels, wherein the guide vanes 14 are composed of both right and left ones and attached to the bottom of the float 3 so that the distance between the both vanes 14 is freely controlled.