<p>Coastal regions are typically characterized by extensive deposits of soft clay, which are notable for their high water content, high compressibility, high organic matter content, low bearing capacity, low permeability, and prolonged stabilization time, collectively referred to as “three highs, two lows, and one long”. Solidification treatment stands out as a prevalent and effective method for enhancing the properties of this soft clay. An in-depth understanding of the static and dynamic characteristics of cement-solidified soft clay is essential to ensure the long-term safety and stability of coastal foundations. This paper reviews the static and dynamic properties and durability of cement-solidified coastal soft clay, elucidates the multi-scale coupling mechanism of cement solidification in coastal soft clay, addresses the existing research gaps, and proposes future research directions. The findings of this study offer valuable insights for the advancement of both scientific research and practical engineering applications.</p>