To provide a subterranean heat exchange body having a high utility value without requiring great expenses, in order to improve warm heat environment by utilizing natural energy.

This subterranean heat exchange body is spirally molded and formed into a product to install it easily irrespective of conditions being different depending on installation places. There are many heat exchange parts due to spiral features even in a part where shallow part zone is few, and depth of digging for an installation hole can be reduced. This heat exchange body can serve also as a foundation pile by combining reinforcing bars with the spiral heat exchange body easily. As a result, the subterranean heat exchange body having high utility value at low cost is provided to solve a problem of warm heat environment by utilizing natural energy.