A refrigerator including a moisture absorbing unit configured to absorb moisture in the cold air surrounding the evaporator. The moisture absorbing unit includes a moisture absorbing material. Therefore, undesirable frosting on the evaporator can be effectively prevented. The moisture absorbing unit can be heated by a defrosting heater disposed proximate to the evaporator and the moisture absorbing unit. Thus moisture in the moisture absorbing material can be removed and the moisture absorbing material can be repeatedly used.