长白侧柏为国家三类保护植物，濒临灭绝树种之一，野生资源现已枯竭。该树种是理想的常绿、吸氟量较强的环保树种；医药行业以其种子、技叶入药。为拯救这个濒危物种，我们采用全光自动喷雾装置进行快速育苗技术研究，运用正交设计试验方法，试验结果表明Ａ１、Ｂ２、Ｃ２、Ｄ２组合为最佳，平均生根率为８９％，为快速培育苗木寻找到适宜的方法。 Platycladus orientalis is one of the three types of protected plants in the country, one of the tree species on the verge of extinction, and now the wild resources are depleted. The tree species is ideal for evergreen, strong fluorine-absorbing environmental species; the pharmaceutical industry with its seeds, leaves of medicine. In order to save this endangered species, we used the all-optical automatic spray device to study the rapid seedling raising technique. Using the orthogonal design test method, the results showed that the combination of A1, B2, C2 and D2 was the best, the average rooting rate was 89% Nurture seedlings to find the right way.