The utility model relates to a yoghourt oil and fat separating machine, belonging to livestock product processing machinery; a base is provided with a round milk barrel, and a vertical shaft is assembled at the bottom of the round milk barrel; a stirring wheel and a driven belt pulley are respectively and fixedly arranged at the upper end and the lower end of the vertical shaft; a worm and gear driving assembly and a motor are assembled inside the base; a worm shaft is connected with the vertical shaft by a clutch; a motor shaft of the motor is fixedly provided with a driving belt pulley, and driving belts are sheathed and matched on the driving and the driven belt pulleys; and a baffle is arranged on the wall inside the round milk barrel. The machine has simple structure, low manufacturing cost, long service life, good operating separation effect and high efficiency, can be used in the areas with electricity and operated under the condition without electricity, and is strong in adaptability and wide in application scope.