This study examined the effects rural-urban migration and its implication to the development of Biu town, Borno State, Nigeria. Both primary and secondary data were used. A purposive sampling technique was employed in the selection of 100 of the respondents in the study area. Questionnaire surveys on 100 heads of households and focus group discussions in each of the five selected wards using purposive sampling namely dugja, kenken, yawi, sulumthla and zarawuyaku out of the eleven wards in Biu town in the study area were used to elicit information on rural-urban migration and characteristics of the rural populace in the study area. Descriptive analyses were employed in the analyses of the data. The results show that migration to Biu Town is largely driven by pull factors such as access to better healthcare, education, and career possibilities as well as push factors such as the lack of security, economic opportunities and environmental challenges in rural areas. Migrant arrivals have accelerated urbanization, putting strain on social services, housing, and infrastructure. But it has also encouraged cultural diversity and boosted economic activity, which has resulted in the growth of the study area. This study emphasizes how important it is to implement comprehensive urban planning strategies and policy changes in order to maximize the benefits of migration while minimizing its detrimental effects on local resources and social cohesion. To promote sustainable growth in Biu town the study recommends that government should provide adequate security, basic social amenities in the rural areas as they are found in the urban so as to encourage the migrant to stay and also promote agriculture production.