The utility model discloses a high temperature water -cooling double -cold -source dehumidification fresh air ventilator group, it has been solved and can not independently dehumidify among the prior art, the energy is aired exhaust in the unavailability, energy -conservation nature is poor, the complicated unsuitable miniaturization of equipment etc. Not enough, have that make full use of high -temperature cold water independently dehumidifies, make full use of airs exhaust the heat recovery, energy -conserving comfortable, a beneficial effect that equipment did not receive amount of wind restriction, its scheme as follows: the high temperature water -cooling double -cold -source structure that dehumidifies, including at least four group's heat exchangers, four group's heat exchanger branches maybe the water -cooling surface cooler, evaporimeter, condenser and air heater, and the evaporimeter is connected with the condenser in four group's heat exchangers, and the water -cooling surface cooler passes through high temperature water route series connection with condenser, air heater, condenser and air heater water route parallel connection, in addition, four organize heat exchangers locates in the box.