Abstract: The black shale of Niutitang formation of Lower Cambrian in Guizhou province is widespread, thick, high in organic content and formed in anaerobic, euxinic and stagnant marine environment, with reserves of about 1 960×108 m3 . The multi?episode tectonic movements and thermal events resulted in its complex occurrence and partial micro?metamorphism, but the black shale still has certain of shale gas potentials in it, deserving to make further studies. It is suggested that in the future geological exploration and development of shale gas should consider the black shale, tight clastic rocks and carbonate rocks and their reservoirs in Guizhou