Based on the new and higher degree geomagnetic model POMME-4.2S from CHAMP satellite data, the authors have calculated the satellite magnetic anomaly and its vertical gradient at 400 km altitude in China and adjacent areas. The distributions of seven magnetic components are shown. In addition, the authors also compared the impact of the truncation level on the magnetic anomaly and analyzed the relationship of the anomaly and the lithospheric structure. The results indicate that, the ΔX (ΔY) magnetic anomalies foci appear on the south (west) and north (east) sides of that of ΔZ, in the main magnetic anomaly areas of Sichuan, Tarim and Songliao basins.