The invention provides a codonopsis pilosula, poria cocos and white atractylodes rhizome tea bag which is prepared from the following substances in parts by mass: 15 to 30 parts of codonopsis pilosula, 15 to 30 parts of poria cocos, 15 to 25 parts of white atractylodes rhizome, 10 to 18 parts of hawthorns, 10 to 18 parts of semen cassia, 8 to 15 parts of white chrysanthemum flowers, 8 to 15 parts of momordica grosvenori, 8 to 15 parts of rose flowers, 6 to 12 parts of orange peels and 6 to 10 parts of tea leaves. The invention further provides a preparation method of the codonopsis pilosula, poria cocos and white atractylodes rhizome tea bag. The codonopsis pilosula, poria cocos and white atractylodes rhizome tea bag disclosed by the invention has the effects of tonifying qi, strengthening the spleen, promoting digestion to eliminate stagnation, relaxing bowel, reducing lipid and pressure, reducing fat, losing weight, reducing blood fat, preventing and treating thrombus and regulating the physiological function of a human body, further has the effects of protecting the health and nourishing the life, and is a safe and toxic and side effect-free natural blood fat and blood pressure reducing good product.