初步总结了乌鲁木齐地区地下流体中等地震源兆的特征。认为中等地震源兆具体表现为震前 1～ 2年 ,多个监测点出现相互配合的前兆异常、或同一测点的绝大多数主测项出现同步性高值异常 ,临震前可能表现出异常过程的转折或反向 ,震后异常由强到弱 ,直至消失。最后对震兆形成的原因进行了初步探讨。 The characteristics of medium earthquakes in Urumqi are summarized. It is considered that the source of moderate earthquake is manifested as that 1 ~ 2 years before the earthquake, the precursory anomaly of the multiple monitoring points coincide with each other, or most of the main measuring points of the same measuring point appear synchronous high anomalies and may show before the earthquake Abnormal process turning or reverse, abnormal after the earthquake from strong to weak, until disappear. Finally, the cause of the earthquake trillion was preliminarily discussed.