The invention discloses a sterilization composition containing 
prochloraz nantokite and 
triazole bactericide as well as an application thereof, which belong to the technical field of 
pesticide. The sterilization composition contains 
prochloraz nantokite (A) and one (B)of the following 
triazole bactericides; 
propiconazole, difenoconazole, triticonazole, 
cyproconazole, 
epoxiconazole, fluquinconazole, flutriafol, 
hexaconazole, ipconazole, metconazole, 
myclobutanil, penconazole, prothioconazole, 
tebuconazole and triadimenol, wherein weight ratio of A to B is 1-70: 1-60. The sterilization composition can be used for preventing and controlling fungous diseases such as cereal, fruit or 
vegetable crops, The composition has high cooperative synergism effect, and can overcome and 
delay the resistance of 
pathogen as well as enlarge a controlling spectrum, the sterilization speed is fast, persistent period is long, application cost is reduced, and the controlling effect of the composition is obviously better than that of a single 
dose.