Abstract: The reduction to the pole as a magnetic anomaly data processing method has been widely used in the magnetic anomaly explanation.It is simple and convenient to estimate the buried depth of magnetic bodies by using northward moving distance of reduction to the pole magnetic anomaly maximum value.As for the long elliptical magnetic anomalies that extend not very long along the strike,the author determined the position of the comprehensive profile in accordance with northward moving distance of reduction to the pole.The magnetic anomaly maximum and actual geological conditions can eliminate or reduce the influence of oblique magnetization,and can achieve the goals because the anomaly of different exploration methods reflects the same geological body.