The invention discloses a traditional Chinese medicine for treating liver-stagnation blood heat type preceded menstural cycle. The traditional Chinese medicine is characterized by being prepared into the traditional Chinese medicine preparation through the following medicines in parts by weight: 25-30 parts of radix cureumae, 15-20 parts of folium artemisiae argyi, 10-12 parts of cortex dictamni, 12-15 parts of lophatherum, 20-25 parts of caulis bambusae in taenia, 25-30 parts of rhizoma ligustici, 20-25 parts of trichosanthes fruit, 25-30 parts of rhizoma cyperi, and 25-30 parts of indigo naturalis. All the raw materials are organically combined together so as to be mutually coordinated and acted, so that the traditional Chinese medicine is capable of treating symptoms and roots causes of the liver-stagnation blood heat type preceded menstural cycle, and has an excellent oposonization role on a human body. For many years, the curative rate of the formula can achieve 94% through the tracking investigation and statistics of 100 cases of patients with the liver-stagnation blood heat type preceded menstural cycle.