The utility model relates to a can pass through hydrological observation device that freezes wall, include along a plurality of hydrology holes that the length direction of passageway seted up of being under construction of freezing of inclined shaft or level, slope, the perpendicular ground in hydrology hole is offered and is extended to the middle non - of freezing the wall and freezes the region, the downthehole pressure detection pipe that has let in of the hydrology, pressure detection pipe lie in freeze the wall in the middle of the non - freeze to have offered on the regional pipe shaft hole of permeating water, the intraductal detection fluid that has let in of pressure detection, be provided with the pressure detection device that is used for detecting internal pressure on the pressure detection pipe, when the inclined shaft freezes to be under construction, probing hydrology hole, at the downthehole leading -in pressure detection pipe of the hydrology, at the intraductal detection fluid of impressing of pressure detection, through the change in valuel of observing pressure measurement, thereby obtain the above -mentioned friendship circle condition of freezing of freezing the wall, confirm the inclined shaft excavation time comparatively accurately.