Abstract: Abstract: Characteristics of dry matter production and NPK absorption of Rehmannia glutinosa were studied to provide a properly fertilizer application for a better cultivar quality and yield. The great variation of dry matter production and NPK absorption was observed between cultivars. The rate of matter production and NPK absorption in the production of species was greater than these in wild species. Considering all production of species, average 2.10 kg N (1.6~2.50), 0.48 kg P (0.29~0.60) and 1.8 kg K (1.41~2.16) were needed to produce 100 kg economical yield. The absorption peak of NK was middle growth period, and the absorption peak of P would last out to harvest from the middle growth period. We concluded that more N fertilizer should be applied in the rapid growth period, not before planting, and add PK fertilizer in the growth period was good to increase growth and economical yield within the artificial cultivation of Rehmannia glutinosa