This paper reviews the soil-arching effect in pile-supported embankments, focusing on its mechanism, influencing factors, and applications. Pile-supported embankments are widely used in foundation treatment due to their safety, efficiency, and economy. The soil-arching effect is a key load-transfer mechanism that reduces surface settlement. Recent research has explored the soil-arching effect in pile-supported embankments, including theoretical studies on load distribution, soil deformation, and factors influencing soil arching. The paper discusses the development history of pile-supported embankments, theoretical models of soil-arching, and the impact of geosynthetic reinforcement. It also reviews the load distribution and settlement characteristics of pile-supported embankments, including the influence of pile shape, embankment fill, subsoil, and geosynthetic reinforcement. The study highlights the importance of soil-arching in reducing settlement and improving the stability of embankments. The paper concludes that further research is needed to better understand the soil-arching effect and its application in civil infrastructure design and maintenance.This paper reviews the soil-arching effect in pile-supported embankments, focusing on its mechanism, influencing factors, and applications. Pile-supported embankments are widely used in foundation treatment due to their safety, efficiency, and economy. The soil-arching effect is a key load-transfer mechanism that reduces surface settlement. Recent research has explored the soil-arching effect in pile-supported embankments, including theoretical studies on load distribution, soil deformation, and factors influencing soil arching. The paper discusses the development history of pile-supported embankments, theoretical models of soil-arching, and the impact of geosynthetic reinforcement. It also reviews the load distribution and settlement characteristics of pile-supported embankments, including the influence of pile shape, embankment fill, subsoil, and geosynthetic reinforcement. The study highlights the importance of soil-arching in reducing settlement and improving the stability of embankments. The paper concludes that further research is needed to better understand the soil-arching effect and its application in civil infrastructure design and maintenance.