The invention provides a preparation method and a product of health-care sweet potato tea. The preparation method of the product comprises the steps of picking sweet potato leaves, allowing the leaves to wither under sunlight or hot air, allowing the leaves to wither indoors, performing the steps of stirring, panning, rolling, and unraveling, and drying the leaves for enabling the moisture content of the leaves to be lower than 4%. By preparing the sweet potato leaves left in summer into the sweet potato leaf tea, the preparation method solves the problems of dull sale and waste caused by overproduction, prevents drainage of the nourishment of the sweet potato leaves through the long-term storage method, enables consumers to absorb the nourishment of the sweet potato leaves through drinking the tea all the year round, and realizes the values of tea drinking culture and health care.本發明提供一種養生地瓜葉茶製法及製品,該製法步驟包括:摘取地瓜葉生葉、日光或熱風萎凋、室內萎凋及攪拌、炒菁、揉捻、解塊、焙乾至4%以下含水量、成品。據此,能使夏季過剩的地瓜葉能改製成地瓜葉茶,避免造成生產過盛後所造成的滯銷浪費,又能以長期保存方式使營養不流失,讓消費者一年四季都能藉由飲茶來喝到地瓜葉的營養,使飲茶文化與養生保健都能同時並存。1...摘取2...日光或熱風萎凋3...室內萎凋及攪拌4...炒菁5...揉捻6...解塊7...焙乾8...成品