The utility model discloses a solution dehumidifier, include: solution dehumidification unit, solution regenerating unit through pipe setup solution dehumidification regeneration cycle return circuitbetween solution dehumidification unit and solution regenerating unit, are equipped with the water collector below the surface cooler of the air intake department of solution dehumidification unit, apipeline and a tank connection are passed through to the bottom of water collector, and the bottom of storage water tank tank wall is passed through the pipeline and is connected with a condensate pump's water inlet, and condensate pump's delivery port falls into two the tunnel, and with the solution unit connection that dehumidifies, another way is connected with solution regenerating unit all the way. The utility model provides a solution dehumidifier's condensate recovery structure: the operating mode adopted the storage water tank to collect the comdenstion water of surface cooler summer,poured into solution dehumidification unit or regenerating unit into through the comdenstion water of condensate pump in with the storage water tank, realized solution dehumidifier's moisturizing andheat pump system's steady operation, the utility model discloses can cancel outside water charging system.