Abstract: A new orchid,Cymbidium micranthum Z.J.Liu et S.C.Chen,is described and illustrated.The type specimen was collected from Maguan of Yunnan.It is similar to some extent to Cymbidium nanulum Y.S.Wu et S.C.Chen,from which it can be easily distinguished by having a pseudobulb 1-1.5 cm long,articulated leaves,incurved-tipped lip and much longer column,and lacking an elongated rhizome underground.