Abstract: In order to verify the abnormal source of Chendian and explore the effective geophysical combination method for finding iron mineralized bodies in the deep overburden area of Wuyang-Xincai iron metallogenic belt，the magnetic anomaly of Chendian was studied by comprehensive geophysical methods such as ground high-precision magnetic profile measurement and ground high-precision gravity profile measurement. Based on the speculation and interpretation of integrated geophysical profile anomalies，boreholes are laid for verification. The results show that Chendian magnetic anomaly is caused by deep iron ore bodies. The iron ore bodies occur in Archean Taihua Group strata，and the buried depth is large. The gravity and magnetic inversion inferred the spatial distribution characteristics of the stratigraphic structure，tectonic framework and magnetic body in the area.

Key words: magnetic anomaly verification, precision magnetic method, gravity survey