A wafer container includes a container body that having a plurality of slots therein for placing a plurality of wafers; an opening is formed on a sidewall of the container body for importing or exporting the wafers; and a door having an inner surface and an outer surface, in which the inner surface of the door is joined with the opening of the container body for protecting the plurality of wafers therein, the characteristic in that: a recess is disposed in the central portion of the inner surface of the door to divide the inner surface into two platforms, and each restraint module is located on two platforms.