The invention belongs to the technical field of air conditioners and particularly relates to an electroosmosis refrigerating and dehumidifying heat exchanger. The electroosmosis refrigerating and dehumidifying heat exchanger comprises a frame, a refrigerant pipeline, a water discharging pipe, dehumidifying fins and heat exchange fins. Each dehumidifying fin is composed of two platy moisture absorption materials side by side, wherein positive electrode materials and negative electrode materials are arranged on the outer side surfaces and the inner side surfaces of the two platy moisture absorption materials correspondingly, the positive electrode materials and the negative electrode materials are connected with a special power source through positive and negative electrode leads and positive and negative electrode connecting wires to achieve electroosmosis dehumidifying, a water discharging cavity is further reserved between the two moisture absorption materials, and a water leading pipe at the bottom of the water discharging cavity is used for collecting water in the water discharging cavity into a water discharging pipe and discharging the water from the water discharging pipe. Each heat exchange fin is provided with a refrigerant pipeline. By means of the electroosmosis refrigerating and dehumidifying heat exchanger, independent control over the temperature and the humidity of an air conditioner device can be achieved, regeneration of moisture absorption materials is achieved, and the beneficial effect that the dehumidifying and heat exchange efficiency is high is achieved; and in addition, comfort of the living space can also be improved, and the beneficial effects of safety, effectiveness, energy conservation, environment friendliness and the like are achieved.