A traditional Chinese medicine decocted tea or a particle tea bag preparation for treating fatty liver comprises gynostemma pentaphyllum, the astragalus, largehead atractylodes rhizome, dried tangerine or orange peel, bupleurum, fructus aurantii immaturus, angelica, salvia miltiorrhiza, turmeric root-tuber, giant knotweed, notoginseng, amomum, folium microcotis, membrane of chicken gizzard, hawthorn fruit, dry bamboo shoot, lotus leaf, rhizoma alismatis, dry parrot stem leaf, Serissa serissoides, gardenia root or gardenia, Japanese ardisia, abrus herb, barberry, costustoot, rhubarb, green tea, malt sugar juice adhesive and bag material. Industrialization of particle tea bag preparation is easy. The particle tea bag preparation is convenient to take and fine in curative effect, and has no side effect, has promising market prospect, high total effective rate in clinical symptomatic treatment, can lower blood fat and blood viscosity stably, can eliminate excessive blood fat and toxic substances in the liver effectively, can restore organs such as damaged liver tissues, can prevent embolism and expand liver blood vessels, can improve blood flow of liver tissues, and can prevent fatty liver, hyperlipemia, viscous blood, syndrome of fat not turning sugar and the like.