The invention discloses a food processor and a knife component for the same. The knife component comprises a knife shaft and a knife blade mounted on the knife shaft, the knife blade comprises an upper knife blade fixed on the knife shaft in a sleeving manner and a disc knife, the disc knife comprises a round body, a plurality of knife teeth which are uniformly distributed and warp upward and downward extend outward at the outer edge of the round body, and a lower knife blade is arranged on the round body. Acting force generated by the upper knife blade and upper knife teeth can offset that generated by the lower knife blade and lower knife teeth, so that the knife component is highly balanced when rotating at a high speed and the food processor is avoided causing sever vibration and high noise. In addition, the upper knife blade, the upper knife teeth, the lower knife teeth and the lower knife blade are positioned in different planes respectively, so that the knife component has four stirring tracks when running, thereby being capable of fully crushing food materials in the different stirring tracks, and the knife component has the advantages of high crushing efficiency and uniformity in crushing.