In the contact type temperature measurement as a thermo couple and so on., there is a problem that it has a heat loss to a sensor. Objective of this study is to build a catoptric type infrared thermometry system which enabled microscopic and high-speed temperature measurement. The catoptric type infrared thermometry system used in this research had spatial resolution which could recognize a detailed structure near an infrared wavelength. And we tried measurement of the evaporation process of the water from the micro porous medium.