The great disaster gave rise to China's earthquake prediction work. Since the Xingtai earthquake in 1966, tens of thousands of geological workers have joined the ranks of researchers studying earthquake prediction. Although the efforts of these researchers has led to successful short-term earthquake forecasts, the unexpected arrival of the Tangshan and this Wenchuan great earthquakes show the current difficulties of short-term earthquake forecasting. This is a worldwide problem. If we think of the earth as an egg, earthquake researchers haven't even broken the eggshell, let alone delve into the earth's crust to study the source of earthquakes.