The invention discloses a bioactive peptide solid beverage for eliminating dampness and eliminating oedema and a preparation method of the bioactive peptide solid beverage. The beverage is prepared from the following raw materials in percentage by weight of 20-30% of isolated soy protein, 15-25% of isomaltooligosacharide, 15-20% of crystal sugar, 3-8% of fish collagen powder, 3-8% of resistant dextrin, 3-8% of chrysanthemum powder, 1-5% of soybean peptide powder, 1-5% of dandelion powder, 1-5% of rice bean powder, 1-5% of wheat oligopeptide, 1-5% of corn oligopeptide powder, 1-5% of wheat germpowder, 1-5% of konjaku flour, 0.5-1.5% of lotus leaf powder, 0.5-1.5% of coix seed powder, 0.5-1.5% of fingered citron powder, 0.5-1.5% of Chinese wolfberry fruit powder, 0.5-1.5% of villous amomumfruit powder, 1-5% of composite vitamins and 0.3-0.6% of silicon dioxide. The bioactive peptide solid beverage for eliminating dampness and eliminating oedema is convenient to carry and drink, has theefficacy of eliminating dampness, eliminating oedema, regulating body metabolism, being healthy and reducing fat, can effectively regulate mechanisms of human bodies after being drunk for a long term, and can achieve good health-preserving health-care effects.