The present invention provides a porous ceramic sintered body suitable for plant growth and with a high cooling effect. The present invention relates to a porous ceramic sintered body including a pore volume, which is the total volume of pores with a diameter of 3 nm to 360 µm, of 0.2 cm 3 /g or larger and including a micropore volume ratio of 30% by volume or more, in which the micropore volume ratio equals to the total volume of pores with a diameter equal to or greater than 0.01 µm and less than 1 µm divided by the pore volume.
