A refrigerator is provided to prevent frost caused by temperature difference between outdoor air and indoor air by installing a dew condensation preventing unit at the front part of a cooling air duct in a freezer compartment. A refrigerator comprises a door(10), a cooling duct(20), and a dew condensation preventing unit(40). The door is installed at the front part of the refrigerator. The cooling duct is installed at the back of a freezer compartment and guides cooling air into the freezer compartment. The dew condensation preventing unit protrudes at the front part of the cooling duct to prevent frost caused by air flowing in when the door is opened and closed. The dew condensation preventing unit is shaped into a rib. The dew condensation preventing unit is bent upwards at the center thereof. The number of the dew condensation preventing unit is more than two.
