Fire can cause damage and benefits to an ecosystem, and this relationship is influenced by two main factors: local weather conditions and fuel material characteristics. One of the main factors influencing the combustion process is the flammability of fuels, and its understanding is essential for the prevention of forest fires. Therefore, this study aimed to evaluate the flammability potential of Tabebuia aurea, Pseudobombax grandiflorum, Dimorphandra mollis, Chytraculia concinna, Eriotheca gracilipes and Qualea multiflora of cerrado sensu stricto and to indicate the species with the greatest potential to help prevent forest fires. The investigation was carried out at the Forest Research Laboratory at the Center for Environmental Monitoring and Fire Management (CeMAF) at the Federal University of Tocantins where flammability tests were conducted to evaluate ignition time, ignition frequency, combustion duration, combustion index and flammability value of the combustible materials, for each species studied 50 firings were performed in a epiradiator, each burn consisted of 1 ± 0.1 g of green combustible material. Based on the obtained data it was verified that among the studied species the one that showed the highest flammability index was Eriotheca gracilipes, on the other hand, Tabebuia aurea, Pseudobombax grandiflorum and Dimorphandra mollis species are considered to be weakly flammable, classifying them as potential for use in forest fire prevention. ; O uso do fogo pode ocasionar danos e benefícios a um ecossistema, sendo essa relação influenciada por dois fatores principais: condições meteorológicas locais e característica do material combustível. Um dos principais fatores que influenciam o processo de combustão é a inflamabilidade dos combustíveis, sendo considerado essencial a compreensão deste para a prevenção de incêndios florestais. Diante disso este trabalho objetivou avaliar o potencial de inflamabilidade das espécies Tabebuia aurea, Pseudobombax grandiflorum, Dimorphandra mollis, Chytraculia concinna, ...