Abstract Based on the horizontal movement field and continuous principal strain field calculated from the GPS data of 2011 and 2013 in Northeast China, the crustal movement and strain\|stress state in Northeast China are researched. The offset rates of major fault zones in Northeast China and fault strain\|stress state are calculated by computation of the block motion parameters, and then the fault zone activities are researched. The results suggest that during the period of 2011-2013, the regularity of the East movement field of Northeast China is relatively good, and the East movement field converges along Hunchun\|Longjing zone with Eastward displacements. The consistency of the central and West movement field of Northeast China is relatively weak, and the displacement directions are relatively scattered. The main strain results reflect that the direction of the principal compressive strain axis of Northeast China during 2011-2013 is NE55°. The distribution area of the compressive region with both horizontal principal strain axes shortened is smallest, and the extension region with both principal strain axes stretched is the second smallest, and the region with the minimum principal strain axis shortened and the maximum principal strain axis stretched (shear activity area) is the largest proportion. Ms≥5.0 earthquakes during this period are concentrated in 2013, and most of the earthquakes occurred on the surrounding zone of movement direction transition and compressive\|shear area, and the biggest Ms 5.8 earthquake occurred on the transitional zone of different movement fields and tectonic belt with relatively strong compression action.
