Objective To analyze the distribution characteristics of TCM syndrome patterns of the patients with impaired glucose regulation（IGR）.Methods Retrospective analytical method was used to investigate the distribution of syndrome pattern

age

gender

body mass index（BMI）

waist-hip ratio（WHR）

blood lipid

blood glucose and insulin level of 159 IGR patients.Results Of the 159 patients

the most common pattern was qi deficiency with blood stasis

accounted for 25.2%

then the second common patterns qi deficiency

qi deficiency with phlegm-damp

and blood stasis.In the 4 patterns

there was no statistical significance in age and gender of patients

while a difference in BMI

WHR

blood lipid

blood glucose

insulin resistance and pancreasislet beta cell function existed.The glucose levels at 60 minutes and 120 minutes during oral glucose tolerance test in the patients with qi deficiency and phlegm-damp syndrome were higher than those of other 3 syndromes（P<0.05 or P<0.01）.Conclusion The most common pattern of IGR patients is qi deficiency or accompanied with qi deficiency

and the insulin resistance in patients of qi deficiency with phlegm-damp syndrome was most serious in degree.