We defend the thesis that the Universidade Federal do Piauí (UFPI) was restructured and expanded and with that the teaching work was intensified reflecting the professional and personal life of the institution's teachers. The analysis focused on the years 2008 to 2012, the period of greatest impact of the restructuring and expansion action. The main objective was to identify and analyze, in the light of theories, documents and empirical data, the intensification process, its nature and what this implied in the teaching work. The problem initially raised was that UFPI was restructured and expanded and the teaching work absorbed all the demands of the new dimension of the institution, so it was intensified as an objective expression of the whole process. The problem is justified by the identification, initially by abstraction, of elements that tend to indicate intensification at work, as a way of adapting teaching practice to the new role of the brazilian federal university in the current phase of expanded reproduction of capital, a perception that merited broader studies on the movement of recomposition of capitalism in the world and how federal universities and teaching work are called to adhere to the transformations in the world of labor required to meet the logic of this movement. All these readings have made promising space in the theoretical and methodological field for the realization of this study, which may contribute to the history of education and teaching work, consequently, to the history and historiography of education of the country and the state of Piauí, as well as for the definition of public policies for work in the field of higher education teaching. Because it is an institution inserted in the subsystem of the national education system, which brings together federal public institutions, and is subject to the same policies implemented in other IFES of the same nature, as an expression of state actions for this level of education, we seek to know research conducted at federal public universities in other regions of the country, the results of which point to the existence of intensification in the teaching work discussed above. To address this problem, we used as documentary technical procedures the documentary research with the contribution of data produced through questionnaires and interviews with social subjects, teachers and teachers of UFPI, which provided a qualitative quantiasqualitative approach, having as theoretical-methodological scope materialism historical in the dialectical perspective. In the development of the method we use the work as the base category and guiding axis, the teaching work as the content category and the dialectic as the method category, as well as its laws expressed in the notion of totality and contradiction. The main theoretical-methodological references used in the study were Augusto Nibaldo Silva