Objective To evaluatethe quality,understandability and utilizability of online coronary heart disease information. Methods With “coronary heart disease” as the search term,Baidu,360 and Sogou were searched for disease relevant information.Two independent raters assessed the quality,understandability and utilizability of the information.The quality was assessed using the DISCERN instrument. Understandability and utilizability were assessed using the Patient Education Materials Assessment Tool for Print Materials(PEMAT-P). Results A total of 34 web sites were included in this analysis. The overall mean quality rating was(48.50±6.83),the understandability was 69.23%(53.85%,73.90%),and the utilizability was 33.33%(20.00%,40.00%). Conclusion The quality of information found online was on moderate level. The understandability and utilizability were low. The quality,understandability and utilizability of network health information should be standardized in order to adapt to more network users.