Analyzing spatial planning system in different countries could help make appropriate decisions to improve functional system of planning in our country. Belgium, inspite of its limited area, has a unique planning system which is derived from political and social condition. Belgium has a federal system which is composed of three cultural societies and three economic regions. Spatial planning is in the authority of economic regions and each region has a different planning system. In the article general characteristics of the Belgium, urbanism problems and finally a brief of spatial planning system in the country has been presented. Analyzing spatial planning system in different countries could help make appropriate decisions to improve functional system of planning in our country. Belgium, inspite of its limited area, has a unique planning system which is derived from political and social condition. Belgium has a federal system which is composed of three cultural societies and three economic regions. Spatial planning is in the authority of economic regions and each region has a different planning system. In the article general characteristics of the Belgium, urbanism problems and finally a brief of spatial planning system in the country has been presented.