Marlene Ribeiro, when telling on the characterization of the Brazilian campesinato, standes out on the relation between agriculture and industrialization, in view of the changes in the relations of work proceeding from such process, thus appearing a heterogeneidade of historical citizens inside of the agricultural areas as: wage-earning workers, diligent temporary wage-earners, integrated leaseholders, sharecroppers, producers the agroindstria and familiar producers that start to live with great agricultural companies, in way whom we cannot, to the speech of the peasant, or the agricultural worker, or of the worker of the land, to have lain a homogeneous situation (RIBEIRO, 2010). In fact, at this historical moment, the agricultural way will go to count on a plurality of forms and of relations of works, however, the fight for the access the land is a common factor to all these new forms of work relations. The question is that such changes introduced to the field, had inside modified the bases of production of the agricultural areas of Brazil, without modifying at no moment the present agrarian structure. For the opposite, the history of the land concentration increases each time more, if consolidating as an effective problem politician, salient in the constitutional conventional of 1946, in what it says respect to the concept of the social use of the land for production, defended link senator Luis Carlos You even give of the PCB. The implementation of the first plants and the devices central offices (pertaining properties the companies) that they bought the production of other supplying devices for the posterior production of the sugar goes to become serious a social problem, mainly had the expropriations (direct and indirect) of lands, parallel the exploration of the work, mainly in the northeast region. Exactly the rules constitutional that would bring the debate on the social use of the land do not go to occasion concrete effect for the agricultural workers and the poor peasants.