This nal project discusses the properties of BI -algebra and properties of ideals in BI -algebra. By using the binary operations and implication algebra are obtained by conditions that show the properties of BI -algebra and Ideals in BI -algebra. This nal project is a review of article from Saeid et al. [Analele Stiintice ale Universitatii Ovidius Constanta, 2017, 177-194]. Keywords: BI…