History is indispensable to understanding ourselves and the world around us. This study attempts to construct the history of Ambo Ambaa lafaa of western shewa zone of Oromia regional state. Its foundation, gradual change, economic activity, politico-administration and religion in different leaders. Further the study recognizes the problem which affects the development of Ambo town. In this study, the researcher utilized primary, secondary and pamphlet sources as well as oral information through interview in order to gather the data. The collected data was organized and analyzed using qualitative research methods. The study is based on historical and Ethnographic approach. The historical foundation of Ambo was not directly concern for the cause of military garrisons like many other Ethiopia Towns, its growth and internal character came to be closely connected with the mineral water, God Bridge and commercial activities. Ambo is town found in west shewa zone of oromia regional state. Ambo was known by pride of their nation in different era of various ruler of Ethiopia. They struggles for their right and know their responsibility simultaneously. Ambo known by patriots, hero and brave those who stand for the freedom of country in any controversy and pleasure time. The society of town needs peace, stability, truth, justice, equality, brotherly hood and fraternity with diverse nation and nationalities in the empire, because Oromo are founders of gada system that did for equality of human beings. Ambo town was established in late of 19<sup>th</sup> century. At the beginning the spatial size of Ambo town is small, it is around 1320 hectares and became expand to 8578 hectares after it makes gradual expansion to the neighboring farm land. As the result Ambo is very comfortable for different investment activities because of comfortable climate condition and stability (safety) in area, there is also different attraction site including Wanchi lake, Dandi Lake (it had number eight shape/symbol), Guder fall, obse fall, old palace of emperor Haile sillase and other different natural, cultural and ritual sites