The invention discloses a nourishing and tranquilizing flour, which is made of the following raw materials by weight part: 40-50 of black beans, 40-50 of buckwheat, 20-30 of almond powder, 20-25 of white sesame, 1-2 of sappan wood, 2-3 of Caulis Spatholobi, 2-3 of herba epimedii, 1-2 of Cynomorium songaricum, 5-6 of ginkgo leaves, 8-10 of Poria, 9-12 of deer fetus, 20-25 of Hami melon, 20-25 of banana, 11-13 of bamboo charcoal, 10-12 of laver, 20-30 of mare's milk, 12-16 of osmanthus fragrans, 1-2 of a food additive, and a proper amount of water. The nourishing and tranquilizing flour provided by the invention adopts black beans, buckwheat, almond powder and white sesame as main raw materials, and has the efficacy of clearing food retention, dissipating stagnation, helping produce saliva and slaking thirst, moistening lung and stopping asthma, relaxing bowels and facilitating feces excretion, resisting tumors, maintaining beauty and nourishing the body. Additionally, the added Poria can clear dampness and promote dieresis, tonify spleen and reduce phlegm, calm the heart and tranquilize the mind, remove toxin and resist cancer, inhibit bacteria, reduce gastric acid, protect the liver, and regulate immunity, etc. Laver has anti-radiation, anti-mutation and antioxidant effects.