Against the backdrop of global energy transition and the rapid popularization of electric vehicles (EVs), traditional single-function charging facilities can no longer meet the demands for efficient energy supply, low-carbon operation, and grid-friendly interaction. Integrated PV–storage–charging–swapping stations, which integrate photovoltaic (PV) power generation, energy storage systems (ESS), EV charging, and battery swapping services, have emerged as a critical solution for optimizing urban energy infrastructure. This study focuses on a typical PV–storage–charging–swapping demonstration station in East China, China, and conducts a comprehensive operational analysis based on on-site survey data collected from March 10 to March 16, 2025. The research details the station’s system architecture, hardware configuration parameters, and temporal operational characteristics of each subsystem (PV, ESS, charging, battery swapping, and load). Key findings indicate that the station achieves efficient clean energy utilization through a “PV priority, ESS regulation, and grid backup” strategy: the 352 kW PV system contributes approximately 20% of the station’s annual electricity demand; the 100 kW/215 kWh ESS effectively smooths PV power fluctuations and realizes peak-valley load regulation; and the diversified charging/swapping facilities (including ultra-fast charging piles, fast charging piles, V2G piles, bus charging station and a battery swapping station) meet the daily energy supply needs of over 300 EVs. Furthermore, the critical role of the flexible interconnection device in managing power distribution between two transformers is highlighted. This study, grounded in real-world operational data, provides detailed empirical references for the design, construction, and operational management of similar integrated stations, supporting the low-carbon and intelligent upgrading of urban transportation energy systems.