Based on comprehensive consideration of all kinds of destructive factors for oil and gas reservoirs, evolutionary characters of petroleum systems and basins, and tectonic characters of formation and evolvement of oil and gas reservoirs, the destructive styles of oil and gas reservoir in China are divided into 7 styles in the paper: sedimentation-deficiency, liquid-washing, fold-alteration, reservoir-uplift, reservoir-subsidence, rupturing and deep-power destruction. The authors analyze some typical oil and gas reservoirs of different styles. Based on this, the destruction of oil basins in China are classified into three grades: completely destructed , incompletely destructed, and coexistence of secondary and primary hydrocarbon reservoirs. In order to account for destructive characters of oil and gas reservoirs in different basins, the authors statistically surveyed 21 basins and analyzed 112 typical oil and gas reservoirs according to three styles of petroleum basins of China: stretching basins in the east, extrusion basins in the west, and intracratonic depressions in the middle. There are numerous destructive styles of reservoirs in the west basins, mainly up-lifting, liquid-washing and rupturing ones. The destructive styles of the middle basins is mainly uplifting and secondarily rupturing. The east basins have favourable preserving conditions of oil reservoirs and are characterized by uplifting and rupturing destructive styles.