Introduction: Shallot is a plant which belongs to Alium and Albale family , this is a native plant from Iran which is self – grown in high Zones. By regard to further use of medicine and plant’s product , use of herbal plants has on important nole in medical treatment and preventi of diseale. The purpose of this study is the photo chemistry properties and anti – bacterial effects of this plant. Method and research : In this study we prepared plant’s essence by use of maceration method and specify the extent of phenol and compound by use of folin eiocalteu and Aluminium V method . In order to effect , the DPPH method and in onder to investigate anti – bacterial effect , the method has been used . Analysis of data u(a) done by use of SPSS & dnausing the graphs was done by Excel. Results and discussion : The most amount of phenol and compound in each gnam of dried essence is : 13/5, 0/77 , 9/59 . Moneouer , anti – bacterial results showed that of shallot’s leaf and onion has acceptable fatal and disincentive effects on staphylococcus accrues and Ancinetobacter baumanni The lowest fatal concentatti on staphylococcus bacteria has been observed has been observed in 1280micrognam / ml. Practicable and industrial advices : The results show that Allium hartifolium Boiss has anti – oxidant effect and it’s leaf has more phenol compounds in nelatti to the onion and can disincentive the DDPH free ladical . Also shallot’s leaf and onion has anti – bacterial effect and can be use as anti – bacterial compound. تفاصيل المقالة