To eliminate danger for a flexible pipe, its joint part and further connecting member of the flexible pipe and a sprinkler head to be damaged by external force or the like during or after construction.

This fire-fighting facility is provided with water feeding piping 5, sprinkler head 43 and flexible pipe 21 for connecting the water feeding piping 5 and the sprinkler head 43 directly or through a header 11 or the like. In this case, a connecting part 41 for connecting the flexible pipe 21 and the sprinkler head 43 at least is housed in a joint box 31.