Fecha de publicación: 05/04/2019 Fuente: Wipo Olive Table The invention discloses tuna mashed potato salad and a preparation method thereof, and belongs to the technical field of fresh food processing. The tuna mashed potato salad is prepared from potatoes,onions, carrots, purple cabbages, green cabbages, tuna cans, salad dressing, brine juice and sweet and sour sauce; the salad dressing is prepared through the following method that S1, gingkgo leaf buds are treated to obtain a gingkgo extract; edible clove leaf oil is added into the gingkgo extract; uniform stirring is performed to obtain a blended substance A; S2, egg yolk, table salt, propolis and white vinegar are stirred to obtain a blended substance B; S3, the blended substance A is added into the blended substance B; olive oil is added while stirring is performed; after the uniform stirring, homogenization treatment is performed to obtain the salad dressing. The tuna mashed potato salad has delicious mouthfeel and rich nutritive values, is favorable for digestion and prolonging of thefood storage life, and is suitable for children to eat.