A simple，fast and sensitive method was developed for the determination of dithiocarbamates,including tiezene(EBDC) and pestanal(PBDC),by optimizing the parameters of LC-MS/MS and extraction buffer.Under the optimized conditions，the calibration curves of EBDC and PBDC were linear in the range of 2-100 μg/L with correlation coefficients not less than 0.997.The limits of detection（LODs，S/N＞3 ） of EBDC and PBDC were 2 μg/kg for cauliflower,turnip and pea,and the limits of quantitation（LOQs，S/N＞10 ） of EBDC and PBDC were 10 μg/kg for turnip and pea，and 15 μg/kg for cauliflower.The recoveries in cauliflower，turnip and pea samples at spiked concentration levels of 5-100 μg/kg ranged from 83% to 96% with relative standard deviations（RSDs） of 4.4%-10.5%.The method could meet the requirement for the analysis of dithiocarbamates in foodstuffs.