The utility model discloses a stuffing mixer for pastry production, which comprises a support box, a vertical frame, a fixing ring, a screening mechanism, a quantitative adding mechanism, a scattering mechanism and a stuffing mixing mechanism, and the screening mechanism comprises a support spring, a connecting ring, a feeding
barrel, a support frame, a rotating rod, an oscillation motor, a
transmission belt, an eccentric wheel and a screening screen. The quantitative adding mechanism comprises a connecting plate, a telescopic hydraulic rod, an adjusting rod and an opening and closing plate, the scattering mechanism comprises a rotating motor, a stuffing mixing
barrel and a supporting column, and the stuffing mixing mechanism comprises a motor base, a stirring motor and a stirring shaft. The vibrating motor is started to drive the eccentric wheel to eccentrically rotate, so that the feeding
barrel is intermittently impacted conveniently to vibrate and screen
powder in the feeding barrel; the telescopic hydraulic rod is started to drive the adjusting rod to rotate, so that the opening and closing plate can be conveniently and automatically opened to quantitatively add stuffing in the stuffing mixing barrel; the stuffing mixing barrel can be driven to rotate by starting the rotating motor, so that materials scattered from the feeding barrel can be conveniently and uniformly distributed on the stuffing in the stuffing mixing barrel.