Drawing on our analysis of Chinese investment flows into Australia during the past decade and our observations of evolving trends，we argue that the current regulatory responses are only part of the solution. More importantly，business concerns should dominate the debate and politicisation avoided as far as possible in order to create a predictable business environment for both foreign investors and their Australian partners. The sustainability of China-Australia investment relations can be maintained within the existing regulatory framework and by reference to business interests without the need for major regulatory changes. Adjustments to the framework and further development and expansion of cooperation will rely on cooperation between Australian and Chinese government and business stakeholders cognisant of domestic and geo-strategic interests and constraints in Australia and China.