Detailed magnetic survey of the Bronze Age archaeological fortified settlements has been spent on South Urals. The magnetic maps Sarym-Sakly settlement have been received. On maps positions of the rests of external shaft, ditches, defensive walls are confidently defined. Results of magnetic survey were used for reconstruction of internal interiors of settlements. The data of magnetic survey was considerably noisy by anomalies from near-surface sources. For finding-out of details of a structure of ancient sites of ancient settlement various kinds of transformation of the magnetic data have been used. This data allows to restore an internal lay-out of sites of ancient settlement.