Under field test condition，this paper studied effects of 3 soil disinfectants on controlling celery root rot．The results showed that all 3 soil disinfectants had certain control effect，and the incidence rate and disease index were significantly higher or extremely lower than that of the contrasts．The control effects of 98% dazomet MG，calcium cyanamide soil purifier and 35% calcium cyanamide AS were 68.03%，57.98% and 35.60%，respectively．Their yields were increased by 35.19%，28.43% and 13.20%，compared with that of the contrasts．98% dazomet MG be used as the first choice for controlling celery root rot．