An oven door includes upper fixtures, lower fixtures and middle frames which are attached to a front glass of the door. One or more panes of glass are mounted behind the front glass and are spaced from the front glass. As a result, air can circulate through a space behind the front glass. In addition, a door handle is coupled to the front glass using a through-hole formed in the front glass, spacers formed on the upper fixtures, and screws going through the spacer and the through-hole, and into the door handle. Outside air introduced from a bottom of the front glass goes out through a side of a space contacting the front glass and thus cools only the space contacting the front glass. Since the heavy division members are supported by only the lower fixture, the oven door can be easily assembled and disassembled when damaged.