The invention relates to a food cutter. The food cutter includes a vessel cup； a fixing base assembled in the vessel cup； a supporting body assembled to the vessel cup； a locking mechanism assembled in the supporting body； a screw cutter extending through the supporting body and the locking mechanism； and a handheld host connected to the screw cutter. The locking mechanism includes a resilient member, a movable bracket, a shaft sleeve, two sliding half threaded sheaths and a rotating cover.
