The invention discloses dried tofu with black beans as main ingredients. The dried tofu comprises the following raw materials in parts by weight: 90-100 parts of black beans, 10-16 parts of corn kernels, 4-6 parts of boxthorn leaves, 3-5 parts of grape leaves, 2-4 pars of Chinese hawthorn leaves, 2-3 parts of betel leaves, 1-2 parts of the root of kudzu vine, 1-2 parts of rhodiola rosea, 2-3 parts of white sugar, 2-6 parts of salt, 0.5-1 part of aginomoto, a proper amount of waxberry and 0.03-0.06 part of a bean product defoaming agent. The dried tofu prepared by the invention has rich nutrition and good taste; the plurality of powder agent added before squeezing and the method of using the waxberry as flavor modifier provide high health protection value to the product; the waxberry has the effects of harmonizing stomach, preventing vomiting, producing saliva, slaking thirst, helping digestion and the like; the root of kudzu vine can raise Yang, relax muscles, promote eruption, check diarrhea, relieve restlessness and quench thirst; the dried tofu is used for treating the diseases such as typhoid fever, strong warm headache, vexation heat, thirst, diarrhoea, dysentery, ecchymosis, hypertension, angina and deafness.