Objective:To explore the tongue color parameters of Framingham cardiovascular risk groups and patients with coronary heart disease.MethodsA total of 240 patients with coronary heart disease were recruited and 286 people for physical examination were collected.According to the Framingham risk score(FRS),physical examination people were divided into 10-year low-risk group(n=216),medium-risk group(n=55)and high-risk group(n=15).TCM tongue diagnosis instrument was used to collect tongue images,and the tongue images were analyzed based on RGB and HSV color space.  Results:The tongue color G,B,S values of the low-risk group were statistically different from those of the coronary heart disease group(P<0.05), The G,B values of tongue color in the coronary heart disease group were higher than those in the low-risk group(P<0.05),and the S value was lower than that in the low-risk group(P<0.05)；The tongue color G,S values in the middle-risk group were statistically different from those in the low-risk group(P<0.05).The tongue color G value of the middle-risk group was higher than that of the low-risk group(P<0.05),and the S value was lower than that of the low-risk group(P<0.05).The tongue-tip color G,B,S values of the low-risk group were statistically different from those of the coronary heart disease group(P<0.05)；The tongue-tip color G,B values of the coronary heart disease group were higher than those of the low-risk group(P<0.05),the tongue-tip color S value in coronary heart disease group was lower than that in low-risk group(P<0.05)；The tongue-tip color R,V values in middle-risk group were lower than that in low-risk group(P<0.05)；The tongue-tip color R value in coronary heart disease group was higher than that in middle-risk group(P<0.05).  Conclusion:There are differences in tongue color parameters in FRS 10-year coronary heart disease low-risk group,middle-risk group,high-risk group and coronary heart disease patients.Tongue diagnosis with a certain reference for predicting the risk of coronary heart disease.