柔性平衡理論以不同於傳統平衡論的觀點解讀國家行為與互動，其認為國家在威脅不明或與他國利益相連等情況下，將透過迂迴隱晦的方式進行平衡。該理論近年來在國際關係學界中漸受關注，研究者們不僅運用其解讀現實案例，也對理論內涵提出許多評述與論辯。本文在回顧既有論著的基礎上探討該理論之內容並檢視各類平衡策略形態，以期呈現柔性平衡理論當前的整體發展狀況，並釐清其內容中的爭議處，以推動後續研究的進一步深化。

The theory of “soft balancing” deals with the actions and interactions among states that is different from traditional balancing theories. The former features a belief that states achieve balances among themselves in indirect and covert ways under uncertain threats and interests pegged with other states. During the past few years, the theory of soft balancing has gradually gained prominence in academic circles of international relations. Researchers not only apply the theory while interpreting actual cases, but also have commented and debated extensively with regard to its contents. This article explores contents of the theory by reviewing arguments in existing studies. The various balancing tactics are divided or combined to reflect the overall development status of the theory at present and clarify contents in question. Hopefully, it will help to promote more advanced studies in the future.