基于技术可供性理论，构建“情境触发—主体行动—功能反馈”的分析框架，以H市B镇从“一码专用”到“一码通用”的实践为案例，揭示城市基层治理中数字技术应用深化的实践表现、生成逻辑与潜在风险。研究发现，伴随城市基层治理中的数字技术应用深化，数字技术在基层治理中的治理定位、治理范围以及治理模式发生转变。城市基层治理中数字技术应用深化的生成逻辑包括情境跃迁与需求塑造下的动力触发机制、主体能动与方案细化下的行动因应机制，以及功能输出与技术供应下的结果反馈机制。值得注意的是，城市基层治理中的数字技术应用深化存在治理场景不兼容、技术过度支配及主体价值消解等潜在风险。研究结论有助于增进关于城市基层治理中技术应用状态的理解，促进对技术次生悬浮的关注。

Based on the theory of technological affordances， this paper constructs the analytical framework of “situation trigger–actor action–function feedback”. Taking the practice of Town B in City H from “one-code-for-one-purpose” to “one-code-for-all-uses” as a case study， it reveals the practical manifestations， generative logic and potential risks of the deepening application of digital technology in urban grassroots governance.The study finds that with the deepening application of digital technology in urban grassroots governance， the governance positioning， governance scope and governance model of digital technology in grassroots governance have changed accordingly.The generative logic of the deepening application of digital technology in urban grassroots governance includes the dynamic trigger mechanism under situational transition and demand shaping， the action response mechanism under actor agency and scheme refinement， and the result feedback mechanism under function output and technology supply.Notably， the deepening application of digital technology in urban grassroots governance entails potential risks such as incompatibility of governance scenarios， excessive technological domination and the dissolution of subject values.The research conclusions help to enhance the understanding of the state of technology application in urban grassroots governance and promote attention to technological secondary suspension.