U shape mixer body of the machine is vacuumized from the top, bushing uses steam heating, combined transmission of stepless speed change, worm wheel and speed reducer increases torque of cross axle mixing, with polyvinyl chloride clapper mixer, during material turnover and mixing, full contact between mixer and pan body ensures no mixing dead angle. Uncovering, discharging and resetting of pan body use hydraulic and mechanic transmission control, convenient to operate. Vacuum frying can lower frying temperature, especially suitable for frying thermal sensitive raw material, avoiding color and taste change of raw materials. It increases frying efficiency, reduces energy consumption,and shortens frying time.