Abstract: In order to find out the reasons for the cut-off of Jinci Spring in Shanxi and the decline and rise of the spring mouth water level in recent years, and provide theoretical reference for spring reflow work, the annual and inter-annual dynamic characteristics of different hydrodynamic zones in Jinci Spring were analyzed based on a long series of meteorological, hydrological, mining, spring discharge and groundwater level data. The influencing factors of the karst groundwater level change in Jinci Spring area in different historical periods were discussed from the aspects of natural climate and human activities. The result shows that:From 1956 to 1994, because the artificial mining volume reached the historical peak in the 1980s and 1990s(at one time exceeded 2.4 m³/s), and after the 1980s, the development trend of drought in Northern China became more serious, the water flow of Jinci Spring gradually decreased until it ceased to flow; From 1994 to 2008, although the amount of artificial mining decreased to a certain extent, it remained at about 2.0 m³/s and coincided with consecutive dry years the precipitation and river runoff decreased by 11% and 27% respectively compared with the multi-year average value,and at this period, the water level at the spring mouth rapidly decreased to the lowest value in history; Since 2008, it has entered a relatively wet period, through taking a number of measures to reduce the exploitation of karst water in the spring area, the water level of Fenhe Reservoir Ⅱhas gradually increased, and its leakage or recharge of karst water has reached the discharge area of the spring area after a lag of about 2 a, and the water level of the Jinci Spring mouth has gradually increased in recent years.

Key words: Jinci Spring, karst water, water level dynamics, influence factor