China had introducted three species plants of Spartina genera from Britain and America since 1963, namely Spartina anglica S. alterniflore and S . patens. Now the 3 species of Spartina plants are widely distributed throughout coast zone of 18 000 km, and growing area reaches to 36 000 hm² along seabeach of China. The facts have proved that Spartina adapt itself to the natural seabeach environment of China and grows well. Spartina is a valuable plant for reforming seabeach land,e. g. the ecological functions of creating land with silt, protecting seacoast, as well as its economic benefit. On the other hand, it is a pioneer plant for the formation of plant community in seabeach. Spartina as a foreign plant species has been listed in the books of Flora Chinensis, Iconographia Cormophytorum Sinicorum and Flora Hebeiensis, etc. Spartina´s benefits and faults ought to be objectivly evaluated. Because of the eutrophication in its waterbody, the Spartina s rate of reproduction is very high. However, there are no injuries to environment, population and humanity. And up to now no abnormal phenomena have been observed in the coast zone of North China. Therefore Spartina alterniflora and S. anglica are not ecological invasion species.