This dissertation deals with the migration from the Northeast to the Rocinha favela, located in the southern part of the city of Rio de Janeiro. Its object of study is the Feira do Boiadeiro, which has been held every Sunday since 1970 at Largo do Boiadeiro, located in the lower part of the favela. This is a qualitative study, whose methodological path is based on a continuous and systematic bibliographic review; participant observation and oral history interviews, with the motivation to understand the Feira do Boaideiro as a place of memory of the Northeast in the Rocinha favela. The purpose of this work is to present a creative and expanded vision of the categories of migration from the Northeast and the favela, based on the paradigm of mobility and the inventive power of popular territories translated as power, based on the memory of first-generation Northeastern migrants living in Rocinha. The results obtained allowed us to understand the main factors that motivated migration, the choice to reside in Rocinha and the importance of memory as an instrument guaranteeing the right to the city for migrants, preserving culture and building the northeastern identity of the favela.