Abstract: The temporal-spatial relationship between coal resources reserves and production capacity directly determine the development stages and evolving path of coal base. How to scientifically identify the development stage of coal base and depletion level of coal resources has important significance on regional development. We designed the model for identifying development stage of coal base. The model takes proportion of surplus resources as a key indicator, and product capacity and service time as auxiliary indicators. It describes the main features in each phase; especially it can identify the time point of resources depletion. Furthermore, we analyzed the interior spatial differentiation of coal base from the perspectives of amount, production capacity, output, and depletion level of coal mines. Finally, we integrated the spatial and temporal views to probe the regularities of coal base’s lifecycle. The result shows that Jining coal base displays a classic lifecycle with four phases, including starting phase (1958-1995), growing phase (1996-2010), mature phase (2011-2020) and depleting phase (2021-2089). It has significant feature of long infancy, short middle and long old ages. The distribution of coal mines and their capacities and depletion levels resulted in the interior spatial differentiation in Jining coal base. During the lifecycle, the resources exploitation firstly expanded outward from two core regions (Yanzhou Coal Field and Tengnan Coal Field), subsequently will be followed by continuously shrinking and depletion. This research details the lifecycle regularity of resources base. The integrated analysis in temporal and spatial views of evolution and developing phase enriched the studies on resources base and resources-based city.