以光固化液态树脂、镁粉、高氯酸铵和燃速调节剂为主要成分，设计一种含能浆料配方，利用数字光处理（DLP）光固化3D打印技术打印了具有延期功能的含能药柱，测试了含能药柱的燃烧过程、延期性能、药柱均匀性和相容性，分析了延期时间的影响因素。研究结果表明：用于DLP光固化3D打印的含能浆料最佳配方质量分数为：燃速调节剂7.53%、高氯酸铵（AP）62.37%、Mg 3.22%、光固化树脂26.88%。浆料性能测试结果为黏度325 mPa·s，固化时间3.2s，固化硬度2H，收缩率4.98%。成功打印的含能药柱为圆柱形，尺寸为Φ6 mm×11.5 mm，平均密度为1.507 g·cm-3，各组分均匀分布，相容性好，燃烧稳定，发出明亮的黄色火焰，燃烧残渣率为4.98%，无黑烟产生，平均延期时间为12.43 s，延期时间的标准偏差为0.0158 s，平均燃速为0.805 mm·s-1，燃速标准差为0.0012 mm·s-1，延期时间满足长秒量延期药标准，延期精度可满足秒级延期药要求。延期时间的影响主次为AP>光固化液态树脂>燃速调节剂>Mg，调整含能浆料各组分含量可控制含能药柱的延期时间，实现不同延期目的。“,”An energetic slurry formulation was designed by light‑cured liquid resin， magnesium powder （Mg）， ammonium perchlorate， and burning rate regulator. The energetic grain was printed by Digital Light Processing（DLP） photocurable 3D printing technology. The combustion process， delay performance， uniformity， and compatibility of energetic grain were evaluated， and the influence factors of delay time were analyzed. The results show that the optimal mass fraction of energetic slurry formulation is 7.53% burning rate regulator， 62.37% ammonium perchlorate， 3.22% Mg， and 26.88% light‑cured resin. Performance test of slurry displays that viscosity， curing time， curing hardness， and shrinkage are 325 mPa·s， 3.2 s， 2H， and 4.98%， respectively. A cylindrical energetic grain was successfully printed with the size of Φ6 mm×11.5 mm and the average density of 1.507 g·cm-3. The printed energetic grain exhibits evenly distributed components， good compatibility， stable combustion process， bright yellow flame， and combustion residue rate of 4.98% without black smoke generation. The average delay time and burning rate are （12.43±0.0158） s and （0.805±0.0012） mm·s-1， respectively. The obtained delay time meets the standard of long second delay composition， and the delay accuracy conforms the requirements of second delay composition. The influence on delay time gradually decreases from ammonium perchlorate， light‑cured liquid resin， burning rate regulator to Mg. The delay time of energetic grain can be controlled to achieve diverse delay targets by adjusting component content of energetic slurry.