This column focuses on Australian economics and trade, covering 12 papers. Nine articles analyze Australia's industrial competitiveness, trade policies, and China Australia economic and trade relations from an economic perspective, while three articles explore China Australia political and economic interactions, economic decoupling, and climate change policies from an international political economy perspective. The research focuses on the international competitiveness of Australia's mining and service industries, particularly the impact of mining and iron ore trade on the Chinese Australian economy, as well as the development of tourism and education industries. At the same time, it analyzed Australia's foreign trade policy, China Australia trade relations, and interdependence in the global value chain. In addition, it also involves the political and economic relations between China and Australia, economic decoupling issues, and climate change policies. The authors of the paper include domestic and foreign experts, scholars, and young researchers, reflecting the in-depth development of Australian research in the fields of economy and diplomacy.