In 2021，Oceania experienced significant challenges，leading to divergent political，economic，and diplomatic situations among regional countries. Australia and New Zealand embraced moderate economic growth while the economic recovery of Pacific Island countries was sluggish. Politically，while Oceania maintained stability in general，due to the negative impact of the COVID-19 pandemic and blunders in domestic policies，the approval rates of the ruling authorities of some Oceania countries fell sharply，and a few Pacific Island countries even experienced serious political turmoil. Meanwhile，great power competition profoundly affected regional countries’ foreign policy. Australia and New Zealand took different atititudes and policy approaches to the ongoing strategic rivalry between great powers. Pacific Island countries prioritized obtaining international aid，coping with climate change，and managing relations with great powers. Furthermore，given that South Pacific University and the Pacific Islands Forum fell into crisis in succession，regional governance in the South Pacific suffered major setbacks.