The paper selects the top 10 official websites of department of oncology in domestic hospitals as the study objectsstate, it evaluates the information and service quality of websites from the four aspects of contents, functions, design, management and maintenance. The results show that the basic information of each website is perfect and easy to understand. However, there are some problems, such as incomplete health information content, unverified accuracy, incomplete function of English websites, incomplete update and maintenance, etc, which need further improvement.