Abstract: The susceptibility tests of antimycotic agents, 5-FC, Amphotericin B(AmB), Alliticum and some traditional herbal medicine against Aspergillus fumigatus were studied. There were significant synergic action of 5-FC combined with AmB in vitro. We also found the synergic action of Alliticum comhined with 5-FC against A. fumigatus. These results provide an evidence for the practice in clinical work.