Mechanism of satellitic thermo-infrared brightness temperature and temperature increasing is studied. Experiments are made with a gas sample taken around the epicenter area. The gas sample is proved to contain green house gases such as CH_4 and CO_2 which have increased by tens of thousands of times. In addition, lab research also proves that CH_4 and CO_2 can obtain energy under the action of transient electric field and release heat, thus resulting in a temperature increase of 2—6℃. Also a brief account of practices since 1990 is given; altogether 40 short-term and impending earthquake predictions have been made, with 9 precise ones whose three main factors of an earthquake are clearly depicted, and 12 fairly good ones. These predictions include 3 earthquakes of M_s≥7, 4 of M_s≥6.0 and the rest are around M_s 5.0. Yet there are earthquakes left out of prediction. Finally the evolutionary processing characters of satellitic thermo-infrared brightness temperature and temperature increase before the Mechanism of satellitic thermo-infrared brightness temperature and temperature increasing is is studied. Experiments are made with a gas sample taken around the epicenter area. The gas sample is proved to contain green house gases such as CH_4 and CO_2 which have increased by tens of thousands of times. In addition, lab research also proves that CH_4 and CO_2 can obtain energy under the action of transient electric field and release heat, thereby resulting in a temperature increase of 2-6 ° C. Also a brief account of practices since 1990 is given; altogether 40 short-term and impending earthquake predictions have been made, with 9 precise ones whose three main factors of an earthquake are clearly depicted, and 12 fairly good ones. These predictions include 3 earthquakes of M_s ≧ 7, 4 of M_s ≧ 6.0 and the rest are around M_s 5.0. Yet the are evolutionary processing characters of satellitic thermo-infrared temperature and temperatur e increase before the