Abstract: The 11 towns with serious subsided area in Weishan County were selected as the research area.Based on suitable landscape pattern metrics and the scale effect theory of landscape ecology, the optimum grain of landscape pattern analysis was found.Taking moving window method, the optimum spatial analysis extent was selected.On this basis, the landscape pattern and the gradient along longitudinal sampling belt were analyzed.The quantitative analysis of landscape pattern change characteristics was realized.The study demonstrates that 50 m and 250 m were the optimum spatial analysis scale.The results of landscape level showed that before 2005, landscape pattern showed a low fragmentation, the dominant landscape was obvious, and the natural connectivity was high.After 2005, driven by rapid economic development and urbanization, the landscape pattern tended to be complicated and diverse, the fragmentation was high and the connectivity was reduced.After 2010, due to the land consolidation and renovation of subsided area, the landscape pattern tended to be regular.The results of landscape class level showed that the cultivated land area decreased dramatically at first, then increased slowly and centralized under the policy.Urban and rural construction land area gradually increased and was high aggregation during the whole research period.Subsided land area also increased gradually, scattered and low connected.After 2005, the subsided land became more regular after renovation.Landscape pattern gradient analysis along longitudinal sampling belt showed that at the intersection of land-water area and the serious subsided area, around residential area and lake shore, the landscape pattern was diverse, complex and more and more fragmented, while dominance, aggregation and connectivity were decreased.This research will provide a theoretical basis for ecological restoration and landscape pattern optimization of the mining area.