Background　Coronary artery monitoring can provide very important information for the diagnosis of perioperative cardiac ischemia.　Objective　To review coronary artery monitoring related literatures and provide reference for perioperative coronary artery monitoring.　Content　Current methods of coronary artery monitoring and their strengths and weaknesses were reviewed.　Trend　With the rapid development of coronary artery monitoring techniques， transesophageal echocardiography（TEE） can be regarded as a more effective tool of coronary artery monitoring.