Construction of steel buildings is increasing very rapidly due to its strength, flexibility, recyclable nature, longer span, no limitation in size of components and more seismic resistance capacity as compared to concrete buildings. A Pre-Engineered Building (PEB) refers to a building which is engineered at a factory as per the specifications, codes and the loads that will be acting on the structure before production of the building components and then finally assembled at site thereby reducing the completion time. The concept of PEB involves predesigning and prefabrication process. The material usage in PEB is optimized by matching the frame geometry with the bending moment diagram's shape, which reduces the overall weight of the structure. In the present study, a review on the analysis and design of PEB structure is presented. The study discusses the various components of the PEB system and provides a detailed step to model PEB structures. From the past studies, it has been found that PEB structures are up to 50% lighter due to the usage of tapered I-sections and cold formed “Z” & “C” sections, approximately 35% cheaper as compared to the conventional steel structures and show reduced lateral and vertical displacements when subjected to the seismic loading and can be constructed in half the time taken for conventional steel buildings (CSB). PEB gives a better output from the architectural point of view with large clear spans & flexibility in future expansion. It has also been found that construction of PEB is more sustainable, environment friendly and economical than CSB.1 © 2022