The invention discloses a caffein-free coffee-flavored beverage and a preparation method thereof. The beverage is prepared from the following raw materials in parts by weight of 80-100 parts of blacktartarian buckwheat
powder, 10-20 parts of
ginkgo leaf tea, 10-20 parts of dried
lotus leaves, 5-10 parts of haws, and 20-30 parts of fructus momordicae fragrant and sweet crystals. The preparation method comprises the following steps of during preparation, firstly taking the
ginkgo leaf tea, the dried
lotus leaves and the haws, performing mixing, adding water of which the weight is 3-5 times of the total weight of the
ginkgo leaf tea, the dried
lotus leaves and the haws, performing boiling over through a strong fire, performing decocting and boiling with a small fire for 1-2 hours, and performing
filtration to obtain filtrate; adding water of which the weight is 1-2 times of that of filter residues, performing boiling over with a strong fire, performing decocting and boiling with a smallfire for 1-2 hours, performing
filtration, and merging filtrate obtained twice, so as to obtain an extraction solution; and mixing the black tartarian buckwheat
powder with the fructus momordicaef fragrant and sweet crystals and the extracting solution, adding water of which the weight is 1-2 times of the total weight of a
mixed solution, performing high-temperature homogenizing treatment, performing filling, performing sterilization and then performing sealing, so that the caffein-free coffee-flavored beverage is obtained. The beverage is rich in nutrients, moderate in
sweetness, soft in mouth feel, and rich in taste, and is a health-care beverage replaced with coffee suitable for old people and young people.