For the reason of an ecological and health point , natural dyes are superior to synthetic dyes and extremely welcome possibility in order to spare fossil resources. The object of this paper is studied to the possibility of extracting colourants from Carthani Flos and Coptidis thizoma. Both colourants showed high affinity to wool and cotton produced yellow to brown colour, and the fastness properties of all the dyed samples were in accord with commercial reguirements.