A ball-shaped food forming machine includes a casing, a pair of sheet-forming rollers, a sheet guide, a cutter roller, a cutter blade, a first ball-forming roller and a second ball-forming roller. The casing includes a receiving chamber. The sheet-forming rollers define a sheet-forming gap therebetween. The sheet guide has a cutting end. The cutter blade is disposed on the cutter roller and rotate along with the cutter roller. When the cutter blade rotated to a first position, a distal end of the cutter blade is right adjacent to the cutting end of the sheet guide. The first and second ball-forming rollers define a plurality of ball-forming gaps therebetween. The first ball-forming roller is closer to the cutter blade than the second ball-forming roller. Thereby, a food slug can be efficiently formed into ball-shaped food.
