To determine standardized patterns for Type Ⅱ Diabetes and explore their correlation with insulin resistance and insulin functions so as to provide objective diagnostic proofs for clinic pattern differentiation.Methods:We selected 327 subjects according to epidemiologic study methods, collected outcomes of four examinations, filled in CRFs, and filed data into the databank. The Chinese medical patterns for Type Ⅱ Diabetes were determined by statistic analysis with Software SPSS13.0 plus advices from experts.Results:Type Ⅱ Diabetes can be categorized to four patterns, i.e. internal retention of damp-heat, deficiency of both qi and yin, inadequate Kidney yang and obstruction of collaterals by blood stasis. Deficiency of qi and yin was dominant, and blood stagnation accompanied the whole progress of Type Ⅱ Diabetes.Conclusion:Four standardized Chinese medical patterns for Type Ⅱ Diabetes were determined on strictly collected 4 examinations information by statistic analysis. The outcome was relatively highly reliable for clinical and research reference.