Green infrastructure construction is one of the most important means to strengthen the urban ecological resilience. The versatility of green infrastructure is a prerequisite for maximizing the overall benefits of urban ecosystem services, which has been recognized by many scholars. We have constructed a green infrastructure planning (GISP) model that includes functional indicators such as rain-flood management, green space accessibility, air purification, heat island mitigation, and landscape connectivity. It is used to conduct an assessment of the versatility of urban green infrastructure, identify high-demand areas for green infrastructure in Hefei, and explore trade-offs and synergies between different functions of green infrastructure. The results show that the northeastern part of Hefei City has the strongest demand for green infrastructure to alleviate urban heat island effect and clean air. The urban one-ring area has the strongest demand for rain-flood management of green infrastructure. The eastern and southern parts of the city have significant demand for green space accessibility. In general, the hotspots for green infrastructure site selection are within the urban area and the northeast region. There is a synergy between the rain-flood management, the alleviation of urban heat islands and the purification of air, and there is a trade-off between these three functions and the landscape connectivity. The GISP model is used to evaluate the Hefei ecological space system control plan and the Hefei spatial greenway network system construction general plan. The planned green space site selection is not in the high demand area of green infrastructure, and there is no strategic integration of green space multi-functional ecosystem services. Thereby obtaining greater ecological resilience.