Objective: To analyze the medication experience of Professor LIU Chi-nian for treating young people with hypertension by using Traditional Chinese Medicine (TCM) Inheritance Support System. Method: The prescriptions for treating young people with hypertension were collected

and input into TCM Inheritance Support System. The composing principles were analyzed by using data mining methods

such as revised mutual information

complex system entropy cluster and unsupervised hierarchical cluster. Result: Based on the analysis on 60 prescriptions

the frequency of each herb and association rules among the herbs were determined

16 core combinations and 8 new prescriptions were mined from the database. Conclusion: Professor LIU Chi-nian focused on the different-stage treatment for young people with hypertension. There are more excess syndromes and less deficiency syndromes in the early stage

which turned into the combination of both with the pathologic changes. According to the stages of the disease

we should distinguish Yin deficiency and Yang excess syndrome. Professor LIU Chi-nian made prescriptions on the basis of clearing liver and clearing liver fire

soothing the liver and regulating Qi

and suppressing hyperactive liver and subsiding Yang. At the same time

professor LIU Chi-nian attached great importance to nourishing and smoothing the liver

and protecting liver Yin. The TCM Inheritance Support System is practical and objective to analyze the TCM doctor' medication experience

and has important value to summarize his clinical experience in a scientific and all-round manner.