This paper presents the content and means of drinking water information disclosure in China and USA, describes the differences between the two countries in these respects, and expounds on the existing problems in China. It is shown that the USA has detailed regulations governing the content and means of drinking water information disclosure and many online databases, which are convenient ways for the public to access the information they need. Based on these comparisons, some suggestions are proposed to improve drinking water information disclosure in China based on the experiences of USA. These suggestions include establishing special information disclosure regulations, clarifying the main body of information disclosure, and improving the content and means of drinking water information disclosure.