The invention relates to the field of medicines, and particularly relates to a medicine and an extracting technology thereof. The extracting technology is characterized in that water is selected as asolvent, so that organic solvents can be greatly saved, and the environmental protection as well as the safety can be ensured; in addition, the low-temperature and high-pressure-difference extractingway is carried out, so that effective components can be extracted to the maximum, and as a result, the production efficiency is improved. The pharmacological research result shows that a traditional Chinese medicine composition prepared according to the extracting technology is capable of obviously reducing high cholesterol, caused by egg nog, of a mice, obviously improving hemorheology of a tested rat with hyperlipemia, decreasing whole blood viscosity, decreasing cholesterol, triglyceride and low density lipoprotein content in blood serum, and obviously decreasing the blood fat; the fat decreasing effect is obviously greater than that of Jiangzhining particles under the same dosage.