Objective: To study the "Qingdai (Indigo Naturalis)" bacteriostatic and bactericidal action on White Candida. Methods: AGAR diffusion method and tube dilution method were applied to determine the "Qingdai (Indigo Naturalis)" suspensions for white candida bacteriostatic ring diameter, minimum baeteriostatic concentration (MIC) and minimum bactericidal concentration (MBC). Results: The bacteriostatie ring diameter 4 diluent eandida dialogue of "Qingdai (Indigo Naturalis)" suspension 1:8, 1:16, 1:32 and 1:6 are respectively(...