To restrict an increase in temperature of frozen goods as minimum as possible when a door is released to open even in a freezer vehicle showing a high frequent degree of opening or closing of the door and further maintain quality of the frozen goods.

A freezer 1 is constructed such that an inner side of a freezing chamber 3 is partitioned into a plurality of segments 27 to 29 by curtains 25 which can be wound up. Cold air cooled by a cooling device 6 is blown into each of the plurality of segments 27 to 29 through an air blowing-out duct 22, respectively. Transporting-out of each of the foodstuffs is carried out in sequence from the plurality of segments 27 to 29 near the doors 4, 5 for use in opening or closing a freezing chamber 3, thereby other segments can maintain the states partitioned by the curtains 25. Due to this state, flowing-in of surrounding atmosphere of high temperature and flowing-out of cold air of low temperature as the door is opened are produced only at the region where the transporting-out the foodstuffs is performed and these flowing-in and flowing-out operations are not produced at other segments.