Pioneered by EigenLayer, Actively Validated Services (AVS) represent an innovative approach to blockchain security, leveraging the economic security of Ethereum's PoS consensus through restaking. This article delves into the operational mechanisms of EigenLayer AVS, examining its implications within the broader context of omnichain restaking. In this omnichain landscape, the AVS ecosystem is characterized by increasing diversification and competition. While challenges such as technical maturity and security risks persist, AVS promises to become a cornerstone of secure and trusted blockchain infrastructure, driving the growth of the crypto market. This paper offers a comprehensive analysis, providing readers with an in-depth understanding of the AVS ecosystem.