Abstract: In order to study influence of underground water resource by mining water drainage，it taking mine drainage as basement, then groundwater level observation data during period of 1980—2014 was utilized，precipitation recharge was calculated and the relationship to coal production was analyzed also.The results showed that，precipitation recharge was stability before year of 2000 and decreased after year 2000.The main reasons were large amount mine water drainage，and groundwater in some region recession，but it exceed the best burial depth of precipitation recharge，then some invalid damage was increased during rain infiltration process，an effectively infiltration recharge was decreased，then groundwater resources was decreased.