This peanut sieving machine adopts four-layer folding structure, which can automatically load four kinds of peanuts (including half-petals) at one time, and then change the sieve to achieve the desired screening purpose. It absorbs the advantages of similar products at home and abroad, and has the characteristics of compact structure, high efficiency, low cost, convenient and reliable use. It is applicable to selected peanuts, with a single selection to achieve accurate grading standards. This peanut sieving machine is suitable for all kinds of peanut, almond, pine nut, and other granular food.