Balancing the supply and demand of key ecosystem services for maintaining city's survival and development is the fundamental requirement and basic principle to guarantee urban ecological security. Hence, urban ecological security is not only an issue within the city, but also relates to other spatial scales such as watershed, regional and national scale. The scales of urban ecological security that should be considered are determined by the ecological processes involved in the key ecosystem services. We firstly interpreted the concept of ecological security pattern and identified its differences with several other relevant concepts, and then analyzed the related research progresses. Based on these analyses, we proposed an ecosystem service based research framework on ecological security pattern, where the key ecosystem service demand of urban ecological security was divided into three levels: surviving demand level that relates to a city's essential resource need and environmental support (including water supply service, food production service, carbon sequestration service, water purification service, etc.), sustainable development demand level that relates to ecosystem stability and regulation services (including soil retention service, water retention service, wind break and sand fixation service, biodiversity conservation service, etc.), and human habitation improvement demand level (including ecological recreation service, microclimatic regulation service, dust and noise reduction service, cultural aesthetics service, etc.). Using this framework, we analyzed the ecosystem service demand of ecological security in Xiongan New Area from different demand levels. Lastly, based on the geographical and socioeconomic features of Xiongan New Area, a framework of constructing ecological security pattern in Xiongan New Area from 3 spatial scales, i.e. Xiongan city scale, Daqing River watershed scale, and Beijing-Tianjin-Hebei regional scale, was developed. Corresponding management strategies and suggestions were also proposed, including implementing multi-scale eco-environmental regulation and management strategies by breaking administrative and regional boundaries and innovating management systems; focusing on the processes of key ecosystem services at all scales, and strengthening the monitoring and forecasting of eco-environment factors; attaching high importance to the ecosystem service demand on habitation improvement level, etc.