The invention relates to a traditional Chinese medicine preparation for treating renal edema. The traditional Chinese medicine preparation is prepared from the following raw materials: 20g of radix astragali, 20g of radix codonopsis, 15g of rhizoma atractylodis, 9g of radix glycyrrhizae, 15g of radix angelicae sinensis, 15g of semen coicis, 15g of talc, 20g of red poria, 10g of polyporus umbellatus, 15g of herba leonuri, 12g of rhizoma alismatis, 15g of semen plantaginis (wrap-boiling), 9g of cassia twigs, 10g of fructus forsythiae, 10g of rhizoma coptidis, 12g of radix aconiti lateralis preparata, 10g of folia perillae acutae, 10g of cortex mori radicis, 12g of red bean seeds, 15g of fresh rhizoma phragmitis and 15g of rhizoma imperatae. When the traditional Chinese medicine preparation is used for treating a patient with fullness and distention at both sides of the chest, 15 g of radix curcumae and 10 g of green tangerine peel are added; and 10 g of dried tangerine peel is further added when the traditional Chinese medicine preparation is used for treating a patient with abdominal swelling. The traditional Chinese medicine preparation provided by the invention is prepared from pure traditional Chinese medicines, can treat both symptoms and root causes, and is remarkable in curative effect.