To provide a highly versatile temporary enclosure of an elevator landing hall capable of changing the depth length of the temporary enclosure of the elevator landing hall.

This temporary enclosure 1 of the elevator landing hall is basically composed of a rear enclosure part 10, a front enclosure part 12, and an expandable side wall part 14 freely expandable by being arranged between the rear enclosure part 10 and the front enclosure part 12. The expandable side wall part 14 is formed in a bellows shape, and is constituted so as to allow folding-up to thereby allow separating-approaching operation of the front enclosure part 12 to the rear enclosure part 10 so that the depth length of the temporary enclosure of the elevator landing hall can be changed. As a result, a sufficient work space can be secured by expanding the expandable side wall part 14 at reforming work, and a passage can be secured by contracting the expandable side wall part 14 when carrying in a large cargo.