The invention relates to an electrophoresis film shifting device for preventing carcinogenic wounding of EB dye liquor for a molecular research of soybean aphids and belongs to the technical field of entomology. The electrophoresis film shifting device for preventing carcinogenic wounding of EB dye liquor for the molecular research of soybean aphids is composed of a grabbing cutter (1) and a tray moving box (44). An electrophoresis film is taken up by means of the grabbing cutter and is placed in the tray moving box, is transferred to a dyeing vat, is then taken up from the dyeing vat by means of the grabbing cutter again if being dyed, is placed in the tray moving box, and then is transferred to a photographing observation dark box; an ultraviolet lamp is turned on for photographing, observing and recording; and then, the whole film is cut down in the device by means of the cutter for follow-up experiments such as identification. The whole process is finished in the device, so that a human hand is prevented from being in direct contact with the EB dye liquor, and therefore, purposes of preventing the human hand from being in direct contact with the EB dye liquor to be carcinogenic to wound, safely transferring the film and reducing the experimental expenditure are achieved. The device is simple to manufacture, high in operability, low in cost and obvious in effect.