This article has the main objective to study the development of the agricultural economy of the Middle Ages. The results of the study revealed that after the fall of the Western Roman Empire in 476 A.D. Europe then has stepped into a dark age. The economy of Europe in the Dark Ages, or the early Middle Ages, was based on the manor, the system with a major focus on agriculture. As a result, the Mannorial economy became a very important feature of Europe in the early Middle Ages. The Manor economic model was both a self-nurturing economy and the self-sufficiency economy that emerged at the time. The essence of the manor system also influences the way agriculture is divided into cultivation areas and simple cultivation methods. The manor economy model took off as the town's growth emerged.