Abstract: Objective Make an inquiry into the using situationl of antibiotics in primary hospital of Yunnan. Methods We designed a randomized trail. An investigation was conducted among five Community Health Service Center and five Township hospitals in Yunnan, collected 11 177 outpatient prescription, to analyze the using situationl of antibiotics. Results The percentage of antibiotics prescribed was 71.7%, the average number of drugs per prescription was 1.2, the utility rate of antibiotics was 35.1%, the utility rate of combined use above three kinds of drugs was 15.5%; the utility rate of cephalosporin was in principio,up to 22.9%. Conclusion The using of antibiotics in primary hospital of Yunnan had some problems.We suggested that the consciousness of antibiotics reasonable using should be enhanced and doctors' behavior should be normed to improve the level of antibiotics reasonable using.

Key words: community health service center, township hospitals, clinic, antibiotics, analyze