Abstract: This paper is research of magnetic anomaly.Objective East Xizang is located in the southwest Sanjiangmetallogenic belt with good metallogenic conditions. In this paper, based on the aeromagnetic survey results of the geotransport project, the aeromagnetic anomalies with good abnormal shape (Zang 16-35)were selected for comprehensive investigation of the geophysical and geochemical surface, and the causes of the anomalies were identified. MethodsThe geological profile survey, high precision ground magnetic survey, soil geochemical profile survey were carried out, and the cause of the anomaly was analyzed by means of profile inversion. ResultsThe results show that there is an obvious malachite mineralization alteration zone on the surface, located in quartz diorite, and the shape of the ground magnetic anomaly is regular, the element content is higher than the background value, and the location of the geophysical and geochemical anomaly corresponds well.ConclusionsIt can be inferred that the survey area where the anomaly is located has a good prospecting prospect, and it also has reference significance for the verification and prospecting of other anomalies in this area.