The invention discloses healthy edible oil and a preparation method thereof. The healthy edible oil comprises the following raw materials by weight percent: 20-22% of perilla seed, 25-28% of safflower seed, 10-14% of lepidium seed, 8-10 % of sesame, 12-15% of seed of cowherb, 6-9% of walnut meat, 8-11% of radix isatidis and 0.1-1% of red ginseng. The various components are combined and interacted, so that the healthy edible oil has the health care functions of replenishing qi and nourishing blood, protecting liver and tonifying kidney, strengthening spleen and invigorating spleen, strengthening sinews and bones, preventing hairs from graying, moisturizing skin and anti-aging and the like, and has more obvious curative effects especially for insobriety and hepatitis.