The paper presents a study on the social structure of the RMB, main urban formation of the Pará State from 1990 to 2000 period. Georreferenciated statistical analysis has been used with IBGE data census in order to reflect the sociospacial structure of Metropolitan Belém and taking the spacial urban clip of the five municipalities together which comprises officially the Metropolitan Region of Belém, concerning Belém, Ananindeua, Marituba, Benevides e Santa Bárbara do Pará. Comparison has been done on social formation by the means of the sociocupational categories defined hence the factorial analysis besides components in order to relate both social and labor divisions and its impacts caused by economic projects envolving both mineral and energetic exploration in its intraurban space.
