Abstract: Objective Reflecting of unreasonable phenomenon by analysis of the cost of prescription drugs, discuss its causes and get the suggestions for controlling prescription charges. Methods Choose the 11 177 copies of out-patient prescriptions from 10 primary medical institutions of Yunnan Province to the study, describe the distribution of prescription charges on the logarithmic conversion. Then analyze the charges by T-test and make the analysis of prescription charges. Results The prescription charges of urban is more than that of Villages and towns. The cost of Medicare health-care unit is more the that of none. Conclusion Controlling the growth of prescription charges by reasonable way, promote rational use of medicines, particular in prescription controls under the cost of medical insurance should be attention.

Key words: prescription charges, primary medical institution, medical insurance