目前临床上常用中药约５００余种，有的中药品种较复杂。为确保用药安全有效，现对中药品种应用中存在的一些问题加以分析，并提出改进意见。 一、多种来源，真伪难辨全国各地使用的石斛有２０多种来源，使用的白头翁来源于４个科１２个属的植物，使用的贯众有６个科３５种植物 At present, about 500 kinds of traditional Chinese medicines are commonly used in clinical practice, and some varieties of traditional Chinese medicines are more complex. In order to ensure the safe and effective use of drugs, some problems existing in the application of TCM varieties are analyzed and suggestions for improvement are proposed. First, a variety of sources, authenticity is difficult to discern the use of Dendrobium throughout the country there are more than 20 kinds of sources, the use of Pulsatillae comes from 4 families of 12 genera of plants, the use of Guanzhong there are 6 families 35 species of plants