This paper systematically discusses the whole process for nearly five years in which the tendency descension of water level of Wanquan well changed into tendency ascension. It has been considered that it is not seismic precursory information, but a reaction of unprecusoray strain information. The water level descension lasted for two years is as a result of decrease of pore water pressure caused by the consumption of elastic reserve under the special hydrogeological and observation conditions; the water level reversion for more than half a year is as a result of that water-filled fault changed the performance of water conduction, thus caused the changes of water quantity and water head; the developing process for nearly two years in which the accelerative ascension of the water level turns stable with high value is a result of further changing the conduction performance of water-filled fault for the sensitive Wanquan well under the reaction of effects of Heze earthquake and some large distant earthquakes.