This study Investigate on Implementation of Industrialized Building Technology for low and middle-income housing construction in Ethiopia. Bahir Dar, which is the capital city of the Amhara National Regional State, was selected as a case to illustrate the issue under study. Modernizing the construction processes through industrialization is a worldwide agenda to improve construction performance. Industrialized Building System (IBS) is a construction method that offers economization of design, site work and materials, provides shorter construction time, saving in labor, better quality control, immunity to weather changes and most importantly, the cost factor. The experiences in developed countries indicate that there is a great potential for Industrialized Building System (IBS) to improve construction performance and it has been proved successful in some countries such as Finland, Denmark, Netherlands, Singapore, England, and the United States. The leading type of housing construction system in Ethiopia, which is conventional system, could not be compatible with increasing rate of housing demand and this created a negative impact on housing construction such as long time construction, material wastage, rising cost, high-embedded energy and so on. Among different housing strategies and policies available in the country, the cooperative housing strategy is found as a more suitable option to implement industrialized building system. Furthermore, a financial analysis is also investigated by using local housing projects taken as the case study. It is found that the cost of housing projects could be reduced by 30% after implementing locally available industrialized building elements; this also can help on wastage reduction and increasing delivery rate without compromising the quality. Therefore, by implementing appropriate industrialized building system, the ever-increasing cost of conventional building system used for housing low and middle-income groups shall be reduced and people shall have access to affordable house in time Investigation on Implementation of Industrialized Building System for Housing Construction In Ethiopia. The Case of Bahir Dar.