Abstract: In order to understand the rising and falling trend o f the reported incidence rate and the reported morality rate of the lawful infectious diseases in Guang xi during 1950 ～ 1998, we analysed systematically the data collected during the oeriod with the descriptive epidemiology.We described the changing characteristic of the teported incidence rate and the repo rted mo rtality tate of the diseases.We analysed the repo rted incidence rate and the propo rtional mo rtality rate of each disease in different vears.We also analysed the changing characteristic and it' s Qause of several major infectious diseases.We discuss the problems and the basic strateg y o f Infectious disease control w lth w hich Guang xi will befaced in the 21th century.We bring forw ard soma new views.