The invention discloses a solid beverage with a dampness-removal effect and a preparation method thereof. On the basis of black tea matrix raw materials, the solid beverage is prepared by adding the following Chinese herbal medicines: fortune eupatorium herb, dandelions, poria cocos, cablin patchouli herb, Chrysanthemums, mung beans and coix seeds which have a dampness-removal effect. The beveragehas the advantages of simple preparation method, convenient eating, convenient carrying, instant brewing, instant eating, pure natural formula, no toxicity, no side effect, capability of quickly andeffectively removing dampness in human body, effects of removing dampness, promoting dieresis and clearing away heat and toxic materials, relief of symptoms of abdominal fullness and distention, nausea, vomiting, anorexia, sloppy diarrhea and the like caused by dampness invasion, and strong dampness-removal function.