Objective To structure the cardiac ischemic model. Methods The first diagonal of left coronary artery of canine was stitched, inducing an ischemic area of 7-8?cm 2. Results Cardiac ischemic models were successfully made in 54 dogs. Operation, EKG and ECT showed manifastations of cardiac ischemia. The ischemic areas had clear edges. Conclusion This method can easily sestablish the cardiac ischemic model with effective results, and no expensive instruments were needed.