The invention provides an automatic refined sesame oil separating device, which comprises a wide-mouth container, a slapping device arranged on the inner side of the wide-mouth container and a driving mechanism used for driving the slapping device to vibrate up and down, wherein the slapping device is a vessel with an arc bottom and an upward opening, a plurality of oil spilling openings are formed in the circumferential wall, which is close to the opening end, of the slapping device at intervals in the circumferential direction, flow baffles are arranged on the inner side of the slapping device and located below the oil spilling openings in the circumferential direction of the inner wall of the slapping device, the flow baffles are arc-shaped plates or bow-shaped plates which are bent from the side wall of the slapping device to the center of the slapping device, and the convex surfaces of the flow baffles face upwards. The device can effectively reduce the content of hemp residues in oil and improve the purity of crude oil.