The present application relates to fly breeding technical field, especially to a kind of fly breeding quantitative feeder.The present application provides such a fly breeding quantitative feeder, including electric slide rail, blanking box, first connecting frame, guide rod and quantitative pressing mechanism etc., electric slide rail is connected with blanking box for accommodating food, blanking box is connected with two first connecting frames, first connecting frame is slidably connected with two guide rods, and quantitative pressing mechanism is used to quantitatively press food.The present application drives blanking box, rotating plate and rotating rod to move left by controlling electric slide rail, and the contact between rotating rod and extruding rod will make the baffle plate move left, when rotating plate contacts with roller, air will enter connecting cylinder under the action of connecting rod and
piston rod, when rotating plate is separated from roller,
piston rod can extrude air in connecting cylinder to connecting box, so that pressing plate moves down, thereby automatically quantitatively feeding fly in breeding frame.