Groundwater recharge is an effective method to solve the groundwater overexploitation. In this study, the method of numerical
simulation is used to discuss the environmental change of groundwater in the process of multi-source recharge. The results of
multiple water sources including local regenerated water source, wetland water source and South-to-North water source show that
the cumulative loss of groundwater resources in Mihuaishun area in 2007 ~ 2016 reaches -1.784 × 109 m3. The influence of different
water sources on the local groundwater environment is different. Nitrate nitrogen concentration of regenerated water source and
wetland water source is higher than that of groundwater, and artificial recharge increases the concentration of groundwater in the
receiving water area. The nitrate concentration in the water source of South-to-North Water Division is relatively low, which plays
a diluting role in the process of groundwater recharge. In addition, the artificial recharge of multiple water sources is also related to
local hydrology geological conditions. The influence of multi-source recharge on groundwater quantity and water quality is analyzed
comprehensively in this study.