In this study, based on the daily ERA-Interim reanalysis data and daily precipitation data from 753 stations throughout China, the synoptic process of the northeast cold vortex during the period of March 23-28, 2008 was analyzed.In addition, the main factors influencing the cold vortex precipitation were also discussed.The results showed that, unlike the summer cold vortex, the upper-level circulation of the early spring cold vortex event underwent a transition from meridional circulation to zonal circulation.The establishment of the meridional circulation during the early stage guided the cold vortex to move southward, while the low trough to the rear (west) of the cold vortex supplied cold air for the development and maintenance of the cold vortex circulation.The blocking systems over the Eurasian continent were key factors influencing the early spring cold vortex.The Okhotsk Sea blocking high and Ural blocking high were respectively regulated by the tropical Pacific and preceding North Atlantic Sea surface temperature anomalies, which provided a beneficial background for the southward development and maintenance of the cold vortex.The jets at the lower and upper levels were also modulated by the Okhotsk blocking high, which was conducive to the formation of cold vortex precipitation.The configurations of the vorticity field and temperature field caused the cold vortex to develop into a deep circulation system, while the dry-air invasion also played an important role.The development of cold vortex circulation provided favorable vertical motion and water vapor conditions for precipitation in northeastern China.Finally, the frontal process induced by the cold and warm advection promoted the formation of large-scale precipitation.