Studying the structure of the pasture assesses its morphological characteristics, such as the number of live and dead leaves and the lengths of the thatch and leaf blade in the tillers, which is important because these characteristics influence plant growth and forage consumption by grazing animals. The experiment was carried out from August 2015 to March 2016 at the Capim Branco Experimental Farm of the Federal University of Uberlândia to assess the structural characteristics of Brachiaria brizantha syn. Urochloa brizantha cv. capim-marandu (marandu grass) managed with varying heights during the seasons. Four defoliation strategies were evaluated on marandu grass.