A refrigerator, comprising: a cabinet having a storage space thereinside; a barrier vertically extending inside the cabinet to partition the storage space into a freezer compartment and a refrigerator compartment side by side; an evaporator disposed in the barrier to generate cooling air; and a blower unit disposed above the evaporator in the barrier to supply the cooling air towards the freezer compartment and/or the refrigerator compartment, wherein the barrier includes: a barrier main body at one side of which the evaporator and the blower unit are disposed, the barrier main body comprising: a first case defining a side of the refrigerator compartment; a second case coupled to the first case and defining a side of the freezing compartment; a concave part defined at the second case and recessed towards the first case; and an insulator disposed in a space which is defined between the first case and the second case; and a barrier cover coupled to the second case to cover the concave part, wherein the concave part includes: an evaporator accommodating part recessed to accommodate the evaporator; a blower unit accommodating part recessed to accommodate the blower unit; and a cooling air passage recessed and extending vertically from an upper end of the blower unit accommodating part to allow a flow of cooling air generated by the evaporator, characterized in that the insulator comprises: a vacuum insulator comprising a sealing part and a core material disposed in the sealing part, the sealing part comprising a thermal deposition layer; and a polyurethane foam at a side of the vacuum insulator. a cabinet having a storage space thereinside; a barrier vertically extending inside the cabinet to partition the storage space into a freezer compartment and a refrigerator compartment side by side; an evaporator disposed in the barrier to generate cooling air; and a blower unit disposed above the evaporator in the barrier to supply the cooling air towards the freezer compartment and/or the refrigerator compartment, wherein the barrier includes: a barrier main body at one side of which the evaporator and the blower unit are disposed, the barrier main body comprising: a first case defining a side of the refrigerator compartment; a second case coupled to the first case and defining a side of the freezing compartment; a concave part defined at the second case and recessed towards the first case; and an insulator disposed in a space which is defined between the first case and the second case; and a barrier cover coupled to the second case to cover the concave part, a barrier main body at one side of which the evaporator and the blower unit are disposed, the barrier main body comprising: a first case defining a side of the refrigerator compartment; a second case coupled to the first case and defining a side of the freezing compartment; a concave part defined at the second case and recessed towards the first case; and an insulator disposed in a space which is defined between the first case and the second case; and a first case defining a side of the refrigerator compartment; a second case coupled to the first case and defining a side of the freezing compartment; a concave part defined at the second case and recessed towards the first case; and an insulator disposed in a space which is defined between the first case and the second case; and a barrier cover coupled to the second case to cover the concave part, wherein the concave part includes: an evaporator accommodating part recessed to accommodate the evaporator; a blower unit accommodating part recessed to accommodate the blower unit; and a cooling air passage recessed and extending vertically from an upper end of the blower unit accommodating part to allow a flow of cooling air generated by the evaporator, characterized in that the insulator comprises: a vacuum insulator comprising a sealing part and a core material disposed in the sealing part, the sealing part comprising a thermal deposition layer; and a polyurethane foam at a side of the vacuum insulator. an evaporator accommodating part recessed to accommodate the evaporator; a blower unit accommodating part recessed to accommodate the blower unit; and a cooling air passage recessed and extending vertically from an upper end of the blower unit accommodating part to allow a flow of cooling air generated by the evaporator, characterized in that the insulator comprises: a vacuum insulator comprising a sealing part and a core material disposed in the sealing part, the sealing part comprising a thermal deposition layer; and a polyurethane foam at a side of the vacuum insulator. a vacuum insulator comprising a sealing part and a core material disposed in the sealing part, the sealing part comprising a thermal deposition layer; and a polyurethane foam at a side of the vacuum insulator.