In order to verify the safety of femtosecond laser processing energetic material s,red phosphorus is used as an alternative to energetic materials.The controllability of “cold processing” and “hot processing” of femtosecond laser processing of red phosp horus is theoretically and experimentally demonstrated.The radial and axial temperature distributions of the red phosphorus samples after the single-pulse femtosecond laser was appl ied to the red phosphorus surface were analyzed by finite element software,and the heat affect ed zone of red phosphorus was obtained.The experimental results verify that the femtosecond la ser processing of red phosphorus samples has two areas of “cold processing” and “hot process ing”.The effects of laser flux on “cold processing” and “hot processing” are analyzed.The “ cold processing” laser flux range of the processed red phosphorus sample was de termined,and the ablation threshold and the incubation coefficient of the red phosphorus sample were calculated.