Abstract:The Red Imported Fire Ant, Solenopsis invicta Buren, one of the ’100 of the world’s worst invasive alien species’ has been found in Hong Kong, Macaw and Guangdong Province (Wuchuan, Guangzhou, Shenzhen, Zhuhai, Huizhou, Dongguan and Zhongshan) since late 2004. The invasion of Red Imported Fire Ant brings a serious threat to cause economic losses by feeding on agricultural crops, seeds, seedlings and forests, by damaging irrigation systems and electrical facilities, by preying upon invertebrates and vertebrates, as well as by stinging to human beings which could cause anaphylactic shock and even death to sensitive individuals. The Authors suggested following points to emergent control of it. (1)We strongly suggest that most infested areas in limited acreage should be eradicated and a few larger ranges should be blocked and then be eradicated hectare by hectare gradually. (2)A national Red Imported Fire Ant management plan must be established and most funding should come form central movement because of its threaten the whole country. It is absolutely not a regional event. (3)We should have a confidence to eradicate or at leased to confine the Red Imported Fire Ant within limited areas by related cooperation by governments, administrations, scientific supports and public.