The invention discloses a semi-automatic traditional Chinese medicine fetching device with a quantitative proportioning function. The device comprises a storage box, a first weighing sensor, a first servo motor, a conveying auger and a control mechanism, wherein an inner container is arranged in the storage box, the first weighing sensor is arranged on the lower surface of the inner container, a feeding port is formed in the surface of a box cover, a sealing plug is inlaid in the feeding port, a guide pipe is fixed to the middle of the box cover through a bolt, the conveying auger is arrangedin the guide pipe, the first servo motor is connected to a coupling above the conveying auger and is mounted above the guide pipe, and a discharge pipe is welded to the outer side of the guide pipe. According to the semi-automatic traditional Chinese medicine fetching device with the quantitative proportioning function, the guide pipe and the conveying auger are arranged, the conveying auger can be matched with the guide pipe to automatically extract medicinal materials in the inner container, so that the medicinal materials are discharged from the discharge pipe, direct contact with the medicinal materials by a doctor is avoided, and the quality of the medicinal materials is guaranteed.