The invention discloses a stirring device for food detection. The stirring device comprises a machine body, a feeding hole, a discharging hole, a power supply interface, a control switch, a telescopicmotor, a driving rod, a bearing I, a support frame, a rack I, a rack II, a gear I, a gear II, a movable shaft, a rotating shaft I, a rotating shaft II, a stirring plate I, a stirring plate II, a driving motor, a support shaft, a bearing II, a bearing III, a rotating cylinder I, a rotating cylinder II, a gear III and blades. The stirring device has the beneficial effects that by arranging the telescopic motor and the driving rod, the support frame is driven by the driving rod to do an up-down reciprocating motion, the stirring plate I and the stirring plate II are relatively rotated, and thenthe contact of the stirring plate I and the stirring plate II and a food detection material in the machine body is relatively adequate, so that the stirring efficiency of the food detection material is improved; and the driving motor is arranged, and the stirring directions of two adjacent blades are opposite, so that stirring of the food detection material is relatively adequate, and the stirringefficiency of the stirring device is improved.