进入21世纪后，美新关系逐渐摆脱新西兰反核政策所造成的冲击与障碍，实现正常化。双方在经贸、外交、地区和全球问题等方面建立了良好的联系和合作。在美新关系的演变中，中美权力对比变迁所带来的国际战略格局变化和中美的政策变化，增强了美新双方进一步发展关系的动力和紧迫性。但这种作用是相对有限的，不会完全支配美新关系的发展。特朗普上台后，美新关系不确定性增加。但未来新西兰不大可能简单追求恢复与美国的同盟关系，特别是针对中国的同盟关系，新西兰将试图保持自己的独立和自主性，与中美双方都发展全面良好的关系。
The new century has seen the normalization of the relationship between New Zealand and U.S.Eventually recovering from the shocks and setbacks caused by New Zealand anti-nuclear policy in mid of 1980s，the two sides have established good contacts and cooperation in the fields like trade，diplomacy，regional issues and global issues.In the process，the evolution of power balance driven by the rapid rise of China and the strategy changes of U.S.and China toward the region have given the new impetus and urgency for U.S.and New Zealand to develop their relations.However，the elements of global balance of powers and China still play a limited role in the U.S.-New Zealand relations，instead of dictating the nature and changes of the relationship.And Trump administration has brought new uncertainty to the relations.In near future，it is unlikely that New Zealand will restore formal alliance with U.S.，especially an alliance against China.Instead，it will maintain the independence and autonomy on international stage，pursuing comprehensive relations and cooperation both with U.S.and China.
