Abstract:Yanzhou coalfield is one of the important coal bases. The quality of coal resources is good. Large scale development of coal resources in this coalfield has greatly contributed to rapid economic development of south and even the whole Shandong province. However, it also accompanies with a series of negative geological environment problems, such as ground subsidence, ground fissures, water pollution and the destruction of water sources. Yanzhou coalfield is located in the groundwaterenriched Wensi river alluvial fan area with the dense population and prosperous rural economy. Accompanying with continuous expanding scale of coal mining, the surrounding groundwater and soil environment have been seriously polluted. The poor drinking water quality constraints economic development and the livelihoods improvement. Based on the investigation and analysis of drinking water quality of this coalfield, drinking water quality and its distribution have been grasped, relative countermeasures for guranteeing water quality safety and water source have been put forward. It is of considerable realistic significance for improving drinking water quality and living quality and building a harmonious society in the region.