Abstract:ObjectiveTo investigate the distribution and drugresistance of pathogens in positive blood culture, so as to provide reference for the rational use of antimicrobial agents. MethodsFrom January 1, 2007 to December 31,2007, a total of 2 317 blood samples were cultured by BACTEC9120 system, the isolates were identified by API system, drug sensitive tests were performed by KirbyBauer test, the data were analyzed by WHONET5.3 software.ResultsTwo hundred and twentythree patients in 55 clinical wards had 324 positive blood culture, the positive rate was 13.98%. The isolated strains include 26 species of bacteria and 3 species of fungi, there were 223 pathogenic strains in total. Grampositive cocci, gramnegative bacilli and Candida were 109(48.88%) strains, 106(47.53%) and 8(3.59%) respectively; The main pathogenic bacteria were Coagulasenegative staphylococcus (67 strains), Escherichia coli (41), Klebsiella pneumoniae (20) and Staphylococcus aureus (15). The percentage of isolated bacteria in intensive care unit, emergency department and hematological department was 21.97%, 14.80% and 14.35% respectively. Methicillinresistant Coagulase negative staphylococcus (MRCNS) and methicillinresistant Staphylococcus aureus (MRSA) accounted for 73.13% and 40.00% respectively. The detection rate of extendedspectrum βlactams (ESBLs) of Escherichia coli and Klebsiella pneumoniae was 41.46% and 30.00% respectively; Drugresistant rate of MRCNS, MRSA and ESBLsproducing strains were all high.ConclusionThere are varieties of pathogens isolated from blood culture, and the drugresistance of pathogens are high, clinicians should pay attention to the culture of blood in patients suspected septicemia, so as to use antimicrobial agents rationally.