Semi-automatic granule filling machine is a commonly used packaging machine, when the material storage is enough, entering into the gravity feeding device under the action of gravity, fully open the door into the large material feeding state. When the weight of the feeding material reached, the door closed, and the fine feeding vibration device continues to feed the material. When reaching the set value, completely closed feeding door, after amount of air feeding, weighing hopper is stable, and the card bag clamping mechanism, discharging door open, the material into the hopper, and then fall into the bag, the completion of a packaging cycle. Semi-automatic filling machine adopts particle fast, medium and slow three feeding speed and special feeding auger structure, with fast self-filling materials, advanced digital frequency conversion technology, sampling processing technology, anti-jamming technology, realizing the automatic compensation and correction.