To provide a honeycomb-like heat storage body that is capable of efficiently performing heat exchanges without destroying high-temperature exhaust gas and displaying the merit of costs including a running cost effectively.

In a honeycomb-like heat storage body 1 having a plurality of honeycomb structures 2 stacked and allowing exhaust gas and the gas to be heated to pass through a channel comprising through-holes 3 alternately so as to recover the waste heat in the exhaust gas, the honeycomb structures 2 comprise a material of spodumene matter.