The invention relates to a juice extractor, in particular to a raw material mashing juice extractor for wine processing. According to the raw material mashing juice extractor for wine processing, after impurities of a raw material are filtered out, the impurities can be mashed, the blocking phenomenon can be prevented from occurring, and manpower can be saved. The raw material mashing juice extractor for wine processing comprises a box and the like. A juicing mechanism is connected with the rear wall of the interior of the box, a driving mechanism is connected with the lower portion of the left side of the box, and a filter screen plate is connected with the upper portion of the inner side of the box. The raw material mashing juice extractor achieves the effects that after the impurities of the raw material are filtered out, the impurities can be mashed, the blocking phenomenon can be prevented from occurring, and the manpower can be saved, the purpose that the impurities of the raw material are filtered out, and then mashing and juicing are conducted can be achieved by arranging the driving mechanism and the juicing mechanism, and by constantly pushing a holding rod to be loose, aknocking block can constantly move up and down to knock the filter screen plate.