Objective To research the quantitative diagnosis of three common Chinese medicine syndromes in arteriosclerotic obliteration（ASO） through establishing the differential diagnosis table for syndrome index measurement.Methods The syndromes information of 179 ASO patients was collected by epidemiological cross-sectional surveys.The differential diagnosis table for ASO syndrome index measurement was established with sum of index and the diagnostic threshold was determined.The sum of index was used to do the quantitative differential diagnosis on the basis of the diagnostic threshold.The efficiency of the differential diagnosis table for ASO syndrome index measurement was evaluated through backward-looking and forward-looking test.Results The diagnostic threshold of syndrome of cold congealing in the vessels and networks

syndrome of blood stasis in the vessels and networks and syndrome of stasis heat in the vessels and networks was 426

404 and 406 respectively.The sensitivity and specificity of three syndromes were all above 90%

the diagnosing coincident rate were all above 97% and the misdiagnosing rate and missed diagnosing rate were all below 6%.Conclusion The differential diagnosis table for ASO syndrome index measurement

sum of index and the critical value of sum of index is effective and functional for quantitative diagnosis of Chinese medicine syndromes.