To provide a pipe rail connection method for horticulture facility which employs a joint design for binding a pipe rail comprising a cooling/warming function and serving as a rail for travel of a work vehicle and being constructed in a horticulture facility by a binding method using a subsidiary material instead of weldment for enhancing adhesion intensity, for installing easily the pipe rail without skilled techniques, and eliminating troubles such as water leakage and to provide the pipe rail.SOLUTION: There is provided a connection method of a pipe rail in which a plurality of steel pipes 8, 9 are connected through a core material 10, and an outer peripheral part of a part where the steel pipes and core material are connected is bound by a heat shrinkable tube 11. Preferably, an adhesive is applied to an inner face of the heat shrinkage tube. The pipe rail is also used as a rail on which a work vehicle travels, and the pipe rail can circulate a fluid into the steel pipes.SELECTED DRAWING: Figure 2
