The monthly 3.2 m-depth ground temperature and rainfall fields before the Ms8.0 Wenehuan earthquake in 2008 and the Ms7.1 Yushu earthquake in 2010 are analyzed separately. The earthquake-birth 3 steps law are found also before the two cases. The time nodes for each step started in for the two respective earthquakes were Aug. 2006 and Jun. 2009 with a largest dryhot area appeared for the first step, Jul. 2007 and Jul. 2009 with a strain wave beginning for the second step, and Mar. 2008 and Mar. 2010 with the strain wave ending for the third step. We had made an earthquake prediction for Yushu case according to the earthquake-birth 3 steps law in Nov. 2009, and the result showed that the magnitude forecasted was right but the location and the time were wrong. Therefore, though the earthquake-birth 3 steps is found, we still have a long way to make a prediction success.