In order to study the compressive properties of reactive powder concrete (RPC) at elevated temperature, 108 cube specimens (70.7 mm×70.7 mm×70.7 mm) were prepared to study the group compressive strength of RPC with polypropylene fibers (PPF) and steel fibers. The influences of temperatures, hybrid fibers content and explosive spalling principles were investigated. The experiment results show that a PPF volume content of 0.2% and a steel fiber volume content of 2% can prevent the explosive spalling of RPC and significantly increase cube compressive strength. The cube compressive strength decreased at 100℃, compared to 20℃ and increased from 200℃ to 500℃ as compared to 100℃, but decreased after 600℃. The cube compressive strength of RPC was lower as the fibers content increased before 300℃, but was higher as fibers content increased beyond 300℃ when steel fibers was the same content. Cube compressive strength of RPC was higher as the steel fibers content increased before 100℃, but was lower as steel fibers content increased beyond 200℃ when PPF was the same content. Compared with the normal strength concrete and high strength concrete, the cube relative compressive strength of RPC was lower before 400℃, but was higher between 500℃ and 800℃. The calculation formula of cube compressive strength at elevated temperature was obtained by fitting the curve of experiment data considering hybrid fibers content as temperature varied.