In order to investigate the plastic property of reactive powder concrete continuous beams,5 two-span reinforced reactive powder concrete continuous beams were fabricated,and were then tested with one point load applied at each midspan.During the test,the mechanical behaviors in the stage of cracks,yielding of the steel bar both in the critical section of intermediate support and mid span,and ultimate limit state were investigated.The calculation formulas of length of equivalent plastic hinge zone are presented based on the test data for the design state and the ultimate state.The calculation formulas of the moment modification coefficient with the plastic rotation of intermediate support and the relative height of compression zone as variables are presented respectively.