The process of diffusion of microfinance and microcredit is characteristic of the current moment of the phase of neoliberal market ideology, which tends to value new spaces for the reproduction of rentier relations. The repercussions on production, society and the refunctionalization of the territories are extremely complex. In this context of intensification of capital flows and predominance of the production of capitalist space through financialization processes, it is necessary to understand the transformations in territorial dynamics, due to the complexity of the multiple scales in which they pass through the territories. In this way, we will try to understand the territorial dynamics of the remaining families of quilombos of the Trombetas river, the access and use of the rural microcredit line of the National Program for Strengthening Family Agriculture (PRONAF) and how the Program transforms (and / or perpetuates) the dynamics of the agro-extractive populations. Economic and environmental rationality are not new in the Amazon, nor in the quilombola territories of the case study. The enslaved Negroes have always been unfeasible and subalternos by the relations of power that seek to homogenize the space and to delegitimize the access to the land and the reproduction of the territorial dynamics and the way of life elaborated by this ethnic group. This was the case with the slave-owning productive system in the eighteenth century, with attempts to destroy the quilombos and reintegration of the black labor force into the productive framework, with the arrival of the conservation units and the bauxite mining company. Nowadays, social development programs are the new elements of the logic of market relations that reach peripheral countries. The spread of microcredit comes from the World Bank, IMF and other institutions responsible for managing poverty. Thus, this research has as main objective to analyze the singularities of the transformations in the territorial dynamics from the access and use of rural microcredit (PRONAF B) in Quilombola Territories of the Trombetas River, Oriximiná-PA.