The utility model discloses a single head vertical medicine packaging machine, composed of an upper part and a lower part; the upper part is provided with a motor, a vertical shaft, and a medicine cylinder, which are connected orderly from top to bottom, a copper pipe is connected with the lower end of the medicine cylinder, and an oar-shaped stirrer is fixed on the vertical shaft; the lower part is provided with a slide bar corresponding to the vertical shaft, a foot plate, a nylon rope, and a heavy weight with an increasing and decreasing adjusting sheet, which are orderly connected, and two flameproof type dry reed pipe motor switches used for opening and closing are arranged in parallel at one side of the slide bar. The utility model has the advantages of simple structure, few components, portability, easy maintenance, possibility of carrying out wax paper barrel medicine packaging of powdery and emulsion dynamite of different varieties, adjustable medicine volume density, and accurate quantification.