The magnetic anomalies were delineated and the direct magnetic data were obtained by the ground magnetic survey in the Songhu iron deposit. On the basis of an analysis of reduction-to-pole of magnetic data and upward continuation,four high magnetic anomaly areas were delineated. Through the utilization of the 2.5° gravity and magnetic anomalies for iron deposit characteristics by fitting a curve of 2-dimensional interactive inversion,the relative depth of the high anomaly area was analyzed. The result has provided geophysical foundation for mineral prospecting.