The patent of the utility model relates to a skull patch device of self -adaptation oranges and tangerines size mainly comprises skull patch barb, connecting rod, tension springs, spacing bolt, push rod, tray, mounting disc, motor, frame. The skull patch barb is installed in connecting rod one end, tension springs and spacing bolt control connection pole open the angle, orange peel and skull patch barb in close contact with when guaranteeing the oranges and tangerines up -and -down motion of variation in size. Skull patch mechanism longitudinal symmetry in the device, during skull patch device during operation, oranges and tangerines push the tray of push rod 2 from device middle part, 1 suitable downstream of push rod, two trays press from both sides tight oranges and tangerines, and push rod 1, push rod 2 reciprocate and drive wherein oranges and tangerines and the contact of skull patch barb afterwards, accomplish the skull patch action.