Based on the eleventh generation of International Geomagnetic Reference Field (IGRF) models, the parameters of main magnetic field were calculated, the parameters includes the dipole magnetic field, the non-dipole magnetic field, westward drift and the non-dipole magnetic field intensity, the secular variations feature of each parameter were analyzed. The magnetic moment of magnetic dipole has been decreasing since 1980,and the magnetic moment of magnetic non-dipole has been increasing during the same period. Five magnetic anomaly area were analyzed, the geomagnetic vertical component of the South Atlantic magnetic anomaly, the African anomaly, the Australia anomaly and the Eastern Asian anomaly growth of 73.8 nT/yr、 48. 0 nT/yr、 41. 3 nT/yr、11. 67 nT/yr, and the geomagnetic vertical component of the North America magnetic anomaly at decreases Speed of 49. 46 nT/yr. During 1980-2010,the South Atlantic magnetic anomaly, the African anomaly, the Australia anomaly and the North America magnetic anomaly are moving westward, but the Eastern Asian anomaly are moving eastward.