我国专业和群众地震工作者在近年发生的几次大地震临震前记录到地下流体(包括地下水、气体、石油)多样的、突发性的前兆异常,不少是国内外的首次发现,为地震预报和对发震过程的认识提供了新的研究线索。经分析研究示出几类典型实例,并论述流体前兆异常的起因。 Professional and mass earthquake workers in our country recorded diversified and unexpected precursory anomalies of underground fluids (including groundwater, gas and oil) before the quake in the few earthquakes that occurred in recent years. Many of them were the first discovery at home and abroad. They were Earthquake prediction and understanding of the seismogenic process provide new clues. Analytical studies show several typical examples and discuss the causes of fluid precursor anomalies.