The invention provides health-care tea capable of improving gastrointestinal tracts and relaxing bowels and a preparation method of the health-care tea and relates to health-care tea. The health-caretea is prepared from the following preparation raw materials in parts by weight: 12 to 15 parts of fructus cannabis, 12 to 15 parts of semen sterculiae lychnophorae, 7 to 10 parts of semen cassiae, 4to 7 parts of folium nelumbinis, 4 to 7 parts of semen pruni, 7 to 10 parts of fructus crataegi, 4 to 7 parts of flos chrysanthemi, 12 to 15 parts of rhizoma phragmitis, 2 to 5 parts of frostbitten folium mori, 12 to 15 parts of honey, 2 to 6 parts of passiflora edulis, 7 to 10 parts of pericarpium citri reticulatae, 1 to 4 parts of fried white hyacinth bean and 2 to 5 parts of semen raphani; thepreparation method comprises the following steps: adding the dried flos chrysanthemi and the passiflora edulis into lemon juice and the honey, and uniformly stirring; then drying and spraying to obtain mixture powder; then carrying out crushing, sieving and drying procedures on the washed and aired fructus cannabis, semen sterculiae lychnophorae, semen cassiae, folium nelumbinis, semen pruni, fructus crataegi, rhizoma phragmitis, frostbitten folium mori, pericarpium citri reticulatae and semen raphani; mixing obtained tea powder and the mixture powder and packaging. The health-care tea provided by the invention has the effects of relaxing bowels and nourishing and tonifying deficiency, is suitable for constipation of old people and lying-in women, and has the effects of eliminating in-vivotoxin, tonifying intestines and stomach and maintaining beauty and resisting ageing.