Biological invasion is the secondly major driver of global biodiversity loss after habitat destruction. Native to the South America, Mytella strigata has been reported in the Indo-Western Pacific regions in recent years, and it has been found in coastal provinces of China, including Taiwan, Guangdong, Hainan, Fujian, and Guangxi, with self-sustaining populations. However, as a new invasive species, M. strigata has not drawn enough attention in China, and its distribution status, spread trend and ecological impact need to be determined urgently to provide scientific evidences for detection, monitoring, prevention, and management of M. strigata. This study summarizes the basic biology and globally biological invasion of M. strigata, proposing that M. strigata in China originated from the Caribbean of South America and invaded to the southern coastal China around 2014 via the ship ballast water or biological fouling hull. Besides, the biological invasion of M. strigata in China currently is in the stage of "Widespread to Dominant" and it's about to exponential increase. As a result, emergency clean action needs to be carried out.