The invention discloses radix astragali and poria damp-clearing powder. The radix astragali and poria damp-clearing powder is prepared from the following bulk drug: radix astragali, white poria, semen coicis, pericarpium citri reticulatae, rhizoma atractylodis macrocephalae (fried), fructus lycii, semen cassiae, fructus amomi, rhizoma alismatis, radix pseudostellariae, fructus crataegi (fried), endothelium corneum gigeriae galli, rhizoma polygonati, chinese leek seed, exocarpium benincasae, gorgon fruit, white lablab beans, semen nelumbinis pulp, mulberry, semen phaseoli (fried), rhizoma dioscoreae (fried) and kidney beans. Natural food materials capable of tonifying spleen, clearing damp and promoting diuresis are selected and prepared into powder, so that the powder is very convenient to take after being mixed with water, can be eaten in a small-amount and multi-meal mode and has obvious effects; and the radix astragali and poria damp-clearing powder can help digestion, nourish stomach and eliminate dampness, nourish yin and tonify yang, tonify qi and reduce blood pressure and blood fat, and improve immunity.