In 1990 to the Urumqi observation station since the incidents had occurred in Urumqi, the region of  before nine earthquakes with magnitude of Ms5.0. This preliminary analysis of the nine earthquakes before and after the change in earth resistivity characteristics: from Urumqi mesa resistivity curve of the observed values can be seen, are a few months before the earthquake began to decline changes. Analysis of anomalies in months to eliminate ground water level, temperature, pressure and rainfall on the impact of ground resistivity, and further validated its precursory anomaly can be seen before the earthquake of the short-impending anomaly more obvious, this article will have done a detailed introduction . We draw up take these nine earthquakes as the example around, their earthquake resistance before and after the change to make analytical studies and lessons learned, and explore the road ahead.