The utility model relates to the technical field of olive oil processing, and provides a waste oil recovery device for olive oil processing, which comprises a reaction tank, an oil inlet pipe and a stirring component, the stirring component comprises a rotating shaft and a feed pipe, the feed pipe is longitudinally arranged and fixedly mounted on the inner wall of the reaction tank, and the rotating shaft is arranged in the reaction tank. The upper end of the feeding pipe is communicated with an outlet of external supercharging equipment, a plurality of spray heads are installed at the lower end of the oil inlet pipe, and the spray heads are arranged at equal intervals in the longitudinal direction and are all communicated with the feeding pipe. The mixing uniformity of the waste oil and the chemical reagent is improved.