Through planting the Spartina alterniflora in different mudflat heights,it growth status and surrounding environment was investigated and recorded.The results showed that,the Spartina alterniflora could exist under the existing artificial shoreline mudflat level,the Spartina alterniflora grown on high level was better than that on low level,but all could not form a good landscape.So,we concluded that the suitable grown elevation of Spartina alterniflora was 0.5 m lower than high tide mark.Combined with the results,the use of Spartina alterniflora in mudflat greening was also discussed.