Abstract:This paper analyzes deformation data from the fixedstations in North China, and 61 mobile measuring lines in Capital Circle area (short leveling , short baseline), and the cutoff time for all the data is August, 2011. The methods of Fourier Transform removing annual cycle and linear fitting are used for processing the data. The results suggest, at present stage, the changes in North China do not form the principal anomaly, which reflects that the faults do not come into the stage of strong activity. The anomaly quantity of the crossing fault data in Capital Circle area is a little, and not synchronous, also the amplitude of abnormal variation is not large,the variation morphology of several abnormal curves is not significant, so there probably does not exist the mediumshortimpending anomaly to some extent.[