Spartina alterniflora is a native species at the Atlantic coast of Americas. It was introduced to Europe and East Asia for coastal protection, and spread to the coast of South Africa, Australia and New Zealand. China has the world largest invasion of this species (>55,000 ha in 2014), with the first introduction in 1979. It has been controversial in the last decades due to its positive and negative effects along the coast. Different measures have been taken to eradicate this species with high cost, while utilization ways have also been explored as alternative management strategies. How to make full use of its positive effects and reduce its negative effects remains a question under the background of large scale coastal ecosystem restoration in China. This symposium will provide a forum for scientists from different backgrounds to share their experiences and lessons in working with Spartina alterniflora, and discuss about future solutions for the dilemma.