ERC-8004 has been proposed to redefine on-chain authorization, addressing the evolving needs of DeFi, AI Agents, and automated systems. Unlike traditional one-time signature confirmations, ERC-8004 introduces a long-term, reusable execution authority model. This standard aims to establish a clear, enforceable permission framework that can be understood and verified by the system, focusing on who is allowed to act and whether permissions are overstepped before actions occur. The core of ERC-8004 lies in transforming authorization from a simple signature action into a permission object that can be described, verified, and managed continuously. It defines a framework for expressing and verifying on-chain permissions, allowing for precise specification of authorized actions, conditions, and timeframes. This approach enhances security by ensuring that automated programs operate within defined boundaries, reducing risks associated with traditional authorization methods. ERC-8004 is expected to have significant applications in DeFi, AI Agent operations, and enterprise scenarios, providing a structured, verifiable method for managing permissions. While it faces challenges in terms of learning costs and infrastructure support, its long-term value lies in enabling complex, automated collaborations in the Web3 ecosystem.