The invention relates to radix astragali dark tea. The radix astragali dark tea is prepared from the following 
raw material components in parts by weight of 45-60 parts of dark tea, 15-20 parts of radix astragali, 10-15 parts of radix puerariae, 5-10 parts of 
lotus leaves, 5-8 parts of platycodon roots, 3-8 parts of 
lophatherum gracile, 3-5 parts of dandelions, 3-5 parts of mulberry leaves and 2-4parts of 
licorice roots, wherein the dark tea is crude dark tea which is subjected to fixation but is not subjected to 
pile fermentation. According to the radix astragali dark tea disclosed by the invention, the radix astragali and the dark tea are organically combined, the radix puerariae, the 
lotus leaves, the platycodon roots, the 
lophatherum gracile,, the dandelions, the mulberry leaves and the 
licorice roots are used for assistance, and all the components are reasonable in compatibility, so that the effects of the dark tea for reducing blood lipid, 
blood sugar and 
blood pressure can be notably reinforced, and besides, the effects of invigorating 
spleen, replenishing qi, effectively reinforcing immune functions of organisms, promoting 
organism metabolism, resisting weariness and the like can be taken account of. All the 
raw material components are subjected to a 
pile fermentation technology, so that functional ingredients of each component are sufficiently released, the functionalingredients of different components are in a synergistic reaction, and the effect of the dark tea for reducing blood lipid, 
blood sugar and 
blood pressure can be notably reinforced; through all-component 
fermentation, the mouth feel is softer, bitter and 
astringent taste is reduced, stimulation of cold and cool components to intestine and 
stomach is relieved, and the radix astragali dark tea is suitable for various 
crowds to drink.