The invention discloses a spray cooling and wastewater recovery circulating system of a glass curtain wall, and aims at solving the technical problems that an indoor temperature is decreased through carrying out spray cooling on the glass curtain wall, and moreover, wastewater brought about by spraying or rainfall is recovered, and is filtered to be reused, so as to realize the purposes of energy saving and environmental friendliness. The spray cooling and wastewater recovery circulating system of the glass curtain wall comprises guide rails, wherein a spray pipe provided with a spray opening is arranged between two guide rails; one end of the spray pipe is connected with a driving mechanism arranged on the guide rails; the outer side of the glass curtain wall and ground are provided with water channels; the water channels are connected with a wastewater recovery circulating system through pipelines; a filter system is arranged in a recovery water tank. In comparison with the prior art, the indoor cooling and the wastewater recycle are realized; the spray cooling and wastewater recovery circulating system of the glass curtain wall is energy-saving and environmentally friendly; through filtering the wastewater, the glass curtain wall cannot be stained even though the wastewater is sprayed again; meanwhile, the cleaning operation to the glass curtain wall can be also realized; the labor cost brought about by manual cleaning is saved; risks caused to a human body by the manual cleaning are reduced.