Objective:This study aims to evaluate the safety and efficiency of the percutaneous left atrial appendage occlusion(LAAO) in nonvalvular atrial fibrillation(NVAF) patients with coronary heart disease(CAD). Methods:Total 51 NVAF patients were consecutively accepted LAAO from June 2015 to July 2017. Patients were divided in two groups:15 with CAD and 36 without CAD. All patients were followed up after discharge with transesophageal echocardiography(TEE) examination. Results:Patients with CAD had higher incidence of hemorrhagic stroke or major bleeding than those without CAD. The incidence of end-point events had no statistical difference between CAD group and non-CAD group. Compared with CAD patients who accepted long-term antithrombotic medication,there was a further reduction of hemorrhage in CAD patients who accepted LAAO group. Moderate or severe left atrial spontaneous echo contrast was correlated with the composite end point events. Conclusion:There are similar safety and effectiveness for LAAO procedure in NVAF patients with or without CAD. Meanwhile,left atrial spontaneous echo contrast is a predictive factor of LAAO in NVAF patients combined CAD.