Healthcare soy sauce and preparation method thereof

The invention relates to healthcare soy sauce which is characterized by mainly comprising the following components in percentage by mass: 10-20% of peanut, 10-15% of sorghum, 2-5% of chrysanthemum morifolium, 3-6% of radix puerariae, 2-5% of folium mori, 3-6% of semen cassiae, 2-5% of liquorice, 1-3% of citric acid, 1-3% of ethyl alcohol, 1-3% of sorbic acid, 1-3% of panax pseudoginseng, 1-3% of safflower, 1-3% of Chinese angelica, 1-2% of polygonum multiflorum and the balance of water. The healthcare soy sauce provided by the invention can be used for perfectly treating and preventing oral ulcer and gum bleeding and also realizes an obvious effect in reducing blood pressure.