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We investigated the possibility existence and stability of volatiles deposits in several craters at South Pole region of Mercury, which contain radar-bright features. To do this we used data from global Mercury DEM . We take into account four altitudinal profiles for each crater, thus the crater was divided into 8 sectors.Unfortunately, for some host crater, such as Chao Meng-Fu, Lovecraft and some other, were was no correct data because of the global Mercury DEM defects on South Pole region. Currently, this DEM (with resolution 665 m/pixel) obtained by photogrammetric methods, is the only DEM available for these latitudes.