Abstract: Urban operation management takes information on problems and data collection as its starting point, prompts the administrative system to improve its cross-level, cross-department, and cross-system governance capabilities, mobilizes multi-actors and their resources, and enhances urban risk prevention and refined management capabilities. From the perspective of digital platform governance, this paper identifies two organizational modes of urban operation management, namely the demand response mode and the smart supervision mode, and expounds their differences in action logic. Furthermore, City B's system of "Handling a Complaint upon Receipt" and City H's system of "City Brain" are selected for case studies to reveal the functions and operation patterns of these two modes. To promote the modernization of urban governance, it is necessary to distinguish application scenarios, build an agile operation management platform, and collect information on problems in a targeted manner. It is also essential to give full play to the functions of responsibility transmission and performance evaluation of data collection, and urge responsible subjects to improve responses, thus continuously improving public services.