Fu-organs-purging and blood-activating therapy is widely used in clinic. Its analogous prescriptions are also effective in treatment. They are worthy of in-depth

systematic and standardized research. Fu-organs-purging and blood-activating therapy was started from ZHANG Zhongjing in Han Dynasty

developed by ZHANG Congzheng in Jin and Yuan dynasties

and improved by WU Youxing and WU Jutong in Ming and Qing dynasties

advanced by many doctors of modern times. This research analyzes 46 formulas for Fu-organs-purging and blood-activating from the ancient medical literature. These formulas can be divided into 21 analogous prescriptions of Taohe Chengqi Decoction（ 桃核承气汤） of stasis-expelling and heat-reducing

11 analogous prescriptions of Dahuang Mudanpi Decoction（ 大黄牡丹汤） of heat-purging and stasis-breaking

7 analogous prescriptions of Didang Wan（ 抵当汤

in pills or decoctions）

Xiayuxue Tang（ 下淤血汤） and Dahuang Chong Wan（ 大黄虫丸）

according to differentiation in degree of Fu-organs-purging

blood-activating and stasis-dispelling

and purgation-tonifying. By counting frequency of herbs in formulas for Fu-organs-purging and blood-activating

it is indicated that Dahuang（ Chinese rhubarb） is the most frequently used herb in purging and Fu-organs-purging herbs

and Taoren（ Semen Persicae） is the most frequently used one in blood-activating and stasis-expelling herbs. These two herbs are the frequently-used herbal pair in Fu-organspurging and blood-activating formulas.