Objective To explore the distribution rule of Chinese medical syndrome in high-normal blood pressure population. Methods Epidemiological investigation methods were adopted to collect four diagnostic information in population with high-normal blood pressure. By using statistical software SPSS 22. 0

descriptive statistics was conducted on general information of patients with symptoms. Conducted factor analysis and clustering analysis on common symptoms. Results There were 36 common symptoms in population with high-normal blood pressure

including headache

dizziness

soreness and weakness of waist and knees

etc. Totally 8 common factors and disease characters were extracted

with involved nature of disease were hyperactivity of Yang

Yin deficiency

phlegm and dampness

and with disease location in the liver

spleen and kidney. It could be clustered into 4 symptom groups: accumulation of excessive phlegm and dampness syndrome

Yin deficiency and Yang excess syndrome

hyperactivity of liver fire syndrome

and deficiency of kidney Yang syndrome. Conclusion Population with high-normal blood pressure could be divided into five kinds: asymptomatic group

accumulation of excessive phlegm and dampness syndrome

asthenic Yin deficiency and Yang excess syndrome

hyperactivity of liver fire syndrome

and deficiency of kidneyYang syndrome.