The authors researched the use of rational drugs after essential medicine policy implemented of community health service institutions in Gaochun County, then found although improved overall, the use of rational drugs still had some problems, including the average number of drugs per prescription was still higher than the standard of WHO, the total percentage of antibacterial prescribed and the percentage of injections prescribed were still too high, drugs which were not included in the list were used relatively high frequency. The authors also suggested that the assessment index for rational drug should be increase, reasonable policy of using drugs not listed in essential drug list should be made, and essential drugs list should be adjust properly.