Abstract: For a given boundary of the open pit，production scheduling is made to determine the advancing position and the striping and mining of the pit each year.Different production scheduling has different advancing positions and capacity of mining and stripping，resulting in different damage areas of stope and waste dump and the emissions of pollutants each year.All these cause some degree of ecological damage.In view of these，according to the optimum boundary obtained，a series of pits with optimum geological feature have been produced and realized dynamic sequencing by the cone exclusive method.Then a dynamic programming was used to design multiple production schemes for a large open pit coal mine.According to the space-time sequence of mine environment damage，mine ecological footprint and cost models were constructed to assess the relationship between the production program and the environment.The results show that different production scheduling has different ecological impacts and the ecological costs take a larger proportion of the total net value.At the same time，ecological costs have an impact on the selection of optimized schemes.

Key words: Open pit coal mine, Production scheduling, Ecological footprint, Ecological costs, Floating cone