(59.36±30.47) pg/ml， (0.21±0.05) ng/ml， (86.31±24.05) ng/ml and (0.31±0.14) ng/ml in control group， and their differences had statistical significance (P<0.05). Coronary heart disease patients had sensitivity， specificity， missed diagnosis rate and misdiagnosis rate by joint detection of hs-CRP and serum HCY respectively as 98.00%， 95.00%， 2.00% and 5.00% ......