In this test,pollen morphology of sixteen species of the genus Pimpinella from China was investigated by light microscopy (LM) and scanning electron microscopy (SEM).Of all species that involved,the pollen morphology of twelve species was documented for the first time.The result shows that the grains fall in the medium range of the size classification with the size of (19.75~33.03) μm×(11.52~17.41) μm,and P/E value of 1.40~2.28 while the grain size index P×E falling in the range of 16.71~23.97.These grains are all tricolporate,having pleurotreme,with mainly subrectangular or equatorially constricted shape in the equatorial view and triangular or triangularrounded shape in the polar view.Under the SEM,cerebroidtype grain sculpture is shown in the equatorial view and smooth or pittedtype sculpture in the polar view.It reveals that Pimpinella species have moderately or more derived pollen morphological features in the family Apiaceae subfamily Apioideae.Furthermore,pollen morphology can provide evidences for the taxonomic treatment for several Pimpinella species.