The utility model discloses a device that permeates water for sponge city ground, including permeable ground surface, drain pipe and cement stake, permeable ground surface includes first filter layerand second filter layer, first filter layer top is provided with grating net, first filter layer below sets up the separation net, the separation net below is provided with the second filter layer, second filter layer below is provided with the support otter board, support the otter board bottom and install hemispherical fibre cover, fibre cover below is provided with the water storage box, placeon the concrete ground water storage box bottom. Beneficial effect lies in: through permeable ground surface carries out a lot of to the rainwater and filters to make clean rainwater collected in thewater storage box to when the dry weather, take it out through the water pump, and spout to in the air, thereby increase air humidity, assemble when the rainwater and highly exceed protruding along the time, can through the drain pipe is discharged fast to it is too high to avoid the rainwater gathering.