Abstract: This paper studied the antibacterial effects of the fruiting bodies from Agaricus blazei through two different methods－ water extracting or ethanol extracting.Tested by the MIC against 8 species of spoilage organisms,the results showed that： (1) the MIC of water extracts:both S.aureus and B.sabtilis were 1.25％ ,E.coli P.ulgaria and P.citrinum 2.5％ ,A.niger and G.condidum 5％ and S.cerevisiae 10％ ;(2) the MIC of ethanol extracts:S.aureus、 B.sabtilis P.citrinum and A niger were 1.25％ respectively P.ulgaria was 2.5％ E.coli S.cerevisiae and G.candidum were 5％ .These results provided scientific bass for exploiting this peculiar resource.

Key words:  , Agaricus blazei Antibacterial (MIC Minimum lnhibition Concentration)；