the fruits and vegetables are carrier microbial flora and in every stage of production, transportation, packaging, storage and sale to consumers are exposed to microbial contamination. Raw fruits and vegetables are suitable place for growing a variety of parasites and bacteria such as Shigella, Pseudomonas aeruginosa and Campylobacter that many of theirs can cause epidemic if the conditions have provide. The use of disinfectants is one of the most important ways to prevent diseases. This study was conducted to evaluate the different disinfections efficiency of fruits and vegetables in market of Kermanshah city (disinfectants 1, 2, 3) that the active ingredient in all three is benzalkonium chloride. The efficiency of three types of disinfectants was studied on removal microbial load of six types of vegetables (coriander, parsley, cress, leek, radish and onion).