Abstract: The classification is presented for the hydrocarbon reservoirs in southern Siberia platform, followed by description of effect of lithology, stratigraphy, geologic structural factors on hydrocarbon reservoir shapes, origins. It is pointed out that the reservoirs in northeastern Siberia platform are mainly developed in anticlinal traps, while the southwestern reservoirs in non-anticlinal traps. This paper studied, recommended optimal program for petroleum reconnaissance survey, exploration

Key words: Siberia platform, oil-gas reservoir, Vendian, Cambrian, reservoir type, exploration