Abstract: In order to study the situation of Measles in Zhengzhou city, an epidemiological Analysis of Measles Diagnostic Cases was conducted As a result, 601 cases of Measles in Zhengzhou 2000-2001 were reported, in which 222 cases were floating population (36.94%) The Measles incidence, which was 4.75 per 100 000 in 2000 and 4.83 per 100 000 in 2001 showed no significant difference in two years. The patients of the two years were mostly below 7 years old,(79.53%,72.28%) Especially, we shold strengthen the management of floating people's vaccine rate,and discuss the problem:how to reduce the measles incidence of the group of people who was one-year-old.