The invention relates to a medicinal material processing device. The technical scheme is as follows: the invention provides a device capable of automatically half-cutting fructus aurantii which characterized by comprising a frame, a feeding mechanism for conveying to-be-cut fructus aurantii, a cutting mechanism for half-cutting fructus aurantii, a distributing mechanism arranged between the feeding mechanism and the cutting mechanism so as to uniformly distribute the to-be-cut fructus aurantii to the cutting mechanism from the feeding mechanism, and a collecting box arranged below the cuttingmechanism to collect finished fructus aurantii; the feeding mechanism, the distributing mechanism and the cutting mechanism are all arranged on the frame; the feeding mechanism comprises a belt conveyor which is obliquely arranged upwards and is used for conveying fructus aurantii from bottom to top to the distributing mechanism and a receiving hopper which is arranged at the inlet of the belt conveyor and into which to-be-cut fructus aurantii is added. The device can replace manual work to carry out automatic cutting on the fructus aurantii and guarantee that the fructus aurantii of uneven size can be half-cut, so that the fructus aurantii cutting efficiency and the fructus aurantii cutting quality can be improved greatly, and the labour cost is reduced.