| This study was carried out to study the sensitivity of some bacteria to antibiotic and plant extracts. The bacteria include: Listeria monocytogenus, Brucella abortus , Brucella meletensis isolated from cases of abortion in pregnant women, Bacillus anthracis (sterne strain) Salmonella typhimurium isolated from case of typhoid fever sensitivity of bacterial isolates against 8 types of antibiotic was studied: Tobramycin (TOB), Ceftazidime (CAZ), Vancomycin (VA), Ampicillin (AM), Cloxacillin (CX), Cefalothin (KF), Cefaclor (CEC), Ofloxacin (OFX). The results revealed that sensitivity test of bacteria was 100% against (OFX , (60% against (TOB, VA and AM), 40% against (CEC) and 20% against (KF, CX and CAZ). Studying the sensitivity of bacterial to alcoholic extracts of these plants: Piper nigrum, cubeb seeds Piper cubeba, Cinnamomuum camphora, Commiphora mol mol, seeds Trigonella foenum- graecum and seeds of Lepidium sativum and Camellia sinensis Linu the result revealed that the bacteria used in this study more sensitive to alcoholic extracts of Piper cubeba, Cinnamomuum camphora and Green Tea Camellia sinensis Linu. The other of alcoholic extracts had no inhibition effect on the bacteria used in this study except the extract of Trigonella foenum- graecum had inhibition diameter 9 mm against Br. Abortus the control sample of Ethyl alcohol had no inhibition effect |