为改善3，3′‑二氨基‑4，4′‑氧化偶氮呋咱（DAAF）的安全性能和起爆性能，提升其作为冲击片雷管始发药剂的应用价值，采用表面活性剂辅助的喷射结晶方法，以二甲基亚砜（DMSO）为溶剂，去离子水为非溶剂制备得到细化DAAF产品，研究了表面活性剂的种类和浓度、溶剂‑非溶剂比例对细化DAAF的形貌、粒径和分散性的影响。通过场发射扫描电子显微镜（FE‑SEM）、X射线粉末衍射仪（XRD）、差示扫描量热法（DSC）和热重分析法（TG）表征了细化DAAF的形貌、晶体结构和热分解性能，并测试了细化DAAF的感度、真空安定性和冲击片起爆性能。结果表明：以PEG‑400为表面活性剂，在其浓度为0.8 g·L-1，溶剂‑非溶剂的体积比为1∶20时，可得到粒径分布均匀（180~220 nm），具有良好分散性的类球形DAAF；与原料相比，细化DAAF的热分解活化能显著升高了23.1 kJ·mol-1，冲击片起爆电流大幅度下降至2.1 kA，真空放气量、静电火花感度和热感度均有明显降低，具有更优的热稳定性、安全性以及冲击片起爆性能。“,”The refined 3，3′‑diamino‑4，4′‑azoxyfurazan （DAAF） was prepared by surfactant assisted spraying crystallization to improve its safety and initiation performance. Dimethyl sulfoxide （DMSO） and ionized water were separately used as the solvent and antisolvent. The effects of the type and concentration of surfactants as well as the volume ratio of solvent to antisolvent on the morphology， particle size and dispersion of refined DAAF were discussed. The morphology and crystal structure of the prepared refined DAAF were characterized by field emission scanning electron microscope （FE‑SEM） and X‑ray diffraction （XRD）. The results show that the spherical‑like DAAF with uniform particle size distribution （180-220 nm） and good dispersion can be obtained when PEG‑400 with a concentration of 0.8 g·L-1 is used as surfactant and the volume ratio of solvent to antisolvent is 1∶20. Compared with the raw material， the thermal decomposition activation energy of the refined DAAF is increased by 23.1 kJ·mol-1， the impulse initiation current is significantly decreased to 2.1 kA， and the vacuum venting， electrostatic spark sensitivity and thermal sensitivity are all reduced， demonstrating that the refined DAAF exhibits improved thermal stability， safety and initiation performance.