Objective: To compare clinical efficacy of ticagrelor and clopidogrel for treatment of coronary heart disease with myocardial ischemia to provide references for later phase of clinical treatment. Methods: Ninety-six coronary heart disease patients with myocardial ischemia admitted to our hospital from July 20 to July 2019 were recruited as subjects. They were randomly divided into study group and control group according to parity of case number, with 48 patients in each group. Control group was given treatment with clopidogrel, while patients in study group were given treatment with ticagrelor. Clinical efficacy was compared between the both groups. Results: Comparison showed that total effective rate of clinical treatment was higher in study group when compared to control group (P<0.05). Frequency of ST segment depression, duration of ST segment depression, systolic blood pressure, diastolic blood pressure, heart rate and other clinical indicators in study group were superior to control group (P<0.05). Whole blood viscosity at low shear rate, whole blood viscosity at high shear rate, plasma viscosity shear rate, total cholesterol, triglyceride and other haemorheological parameters in study group were superior to control group (P<0.05). Conclusion: Application of ticagrelor has higher clinical efficacy than clopidogreal for coronary heart disease patients with myocardial ischemia. Clinical indicators and haemorheological parameters of myocardial ischemia patients were significantly improved. It should be promoted for application.