Background & Aim: Very studies results show that many plants can be used safety and successfully to treat bacterial diseases without presenting the disadvantages affects and antibiotic resistance. Eucalyptus globulus and Malva neglecta are native plants in Iran that due to containing different chemical compounds have been antimicrobial activity against some bacteria. The aim of this study is comparison of antibacterial effects of Eucalyptus globulus and Malva neglecta extracts on Staphylococcus aureus, Enterococcus faecalis, Salmonella typhimurium and Pseudomonas aeruginosa.Experimental: In this study, at the first time aquatic, ethanolic, acetonic and chlorophormic extracts of E. globulus and M. neglecta dried leaves prepared. Then MIC and MBC of the extracts for the bacteria with micro-dilution method and well diffusion method performed for dosage depending effect.Results & Discussion: The results showed that both plant extracts have antimicrobial activity against bacteria, but antibacterial activity of various extracts of E. globulus is more than M. neglecta extracts and, this extracts can be used in the manufacture of new drugs of plant origin.Industrial/Practical recommendation: According to antimicrobial effects of Eucalyptus globulus and Malva neglecta extracts in this study recommended after human studies, it is prepared herbal drug from this plant and presented. تفاصيل المقالة