An oven, comprising: a body having an inside case at which a cooking compartment is formed at an inside thereof and an outside case coupled to an outer side of the inside case; an electrical compartment formed between the inside case and the outside case to accommodate electrical components; a cooling fan provided at an inside of the electrical compartment, configured to generate an inflow force to inflow air at an outside of the body into the inside of the electrical compartment; a display module provided at a front of the electrical compartment, and having an upper portion and a lower portion; an outside air inlet unit formed at the body such that the outside air inlet unit is located above the display unit; the cooling fan is configured to blow the air to a front of the body after having the air moved at the inside of the electrical compartment, and a guide member provided at the electrical compartment as to interrupt the air inlet into the outside air inlet unit from moving toward the cooling fan and to guide the air to move from the upper portion of the display module to the lower portion of the display module; characterized in that the cooking compartment is provided at a lower side of the electrical compartment; a cooling path is formed in between the electrical compartment and the cooking compartment as to guide the air flown in by use of the cooling fan to a front of the body; an exhaust path connects the cooking compartment and the cooling path as to exhaust the air of the cooking compartment into the cooling path, a base bracket is provided in between the cooking compartment and the electrical compartment; a cover bracket is coupled to an upper portion of the base bracket as to form the cooling path; an exhaust bracket is coupled to a lower portion of the base bracket as to form the exhaust path; an exhaust hole is formed at the base bracket as to exhaust the air of the exhaust path into the cooling path; and a bypass hole formed at the base bracket as to have a portion of the air moving at a cooling path inlet into the exhaust path. a body having an inside case at which a cooking compartment is formed at an inside thereof and an outside case coupled to an outer side of the inside case; an electrical compartment formed between the inside case and the outside case to accommodate electrical components; a cooling fan provided at an inside of the electrical compartment, configured to generate an inflow force to inflow air at an outside of the body into the inside of the electrical compartment; a display module provided at a front of the electrical compartment, and having an upper portion and a lower portion; an outside air inlet unit formed at the body such that the outside air inlet unit is located above the display unit; the cooling fan is configured to blow the air to a front of the body after having the air moved at the inside of the electrical compartment, and a guide member provided at the electrical compartment as to interrupt the air inlet into the outside air inlet unit from moving toward the cooling fan and to guide the air to move from the upper portion of the display module to the lower portion of the display module; characterized in that the cooking compartment is provided at a lower side of the electrical compartment; a cooling path is formed in between the electrical compartment and the cooking compartment as to guide the air flown in by use of the cooling fan to a front of the body; an exhaust path connects the cooking compartment and the cooling path as to exhaust the air of the cooking compartment into the cooling path, a base bracket is provided in between the cooking compartment and the electrical compartment; a cover bracket is coupled to an upper portion of the base bracket as to form the cooling path; an exhaust bracket is coupled to a lower portion of the base bracket as to form the exhaust path; an exhaust hole is formed at the base bracket as to exhaust the air of the exhaust path into the cooling path; and a bypass hole formed at the base bracket as to have a portion of the air moving at a cooling path inlet into the exhaust path.