In order to provide scientific basis for the application cut roses cultivation,this paper studied the nutrients N,P,K absorption characteristics of the "black magic" during the vegetative growth and cut stages by field trials.The results showed that:The factors of influecing the height of cut flower by order were K>Ca>P>N,and N1P2K2Ca2 fertilizer yields the greatest rate of harvest; Impact factor of crown width of cut roses by order were Ca>K>P>N,and N2P3K2Ca3 fertilizer yields the greatest rate of harvest.The best fertilizer ratio in the seedling stage was N2P1K2Ca2(N 450 kg/hm2,P 131.4 kg/hm2,K 400.05 kg/hm2,Ca 1 300.5 kg/hm2); The best fertilizer ratio in the continuity cutting stage was N2P1K3Ca2(N 450 kg/hm2,P 131.4 kg/hm2,K 600 kg/hm2,Ca 1 300.5 kg/hm2).