The dissolution and precipitation of carbonate in buried diagenesis extensively control the quality of carbonate reservoir. The related geological process has been the research focus for years. The hydrothermal fluids migrating upwards from deeper strata along faults can cause the dissolution of carbonate. However, this model can not fully explain the dissolution mechanisms of extensively existed carbonate which are not associated with fault. Based on the study of the dissolution and precipitation mechanisms of deep buried carbonate in Northeast Sichuan Basin and Northern Tarim Basin, we propose that the subsidence and uplift of basin during buried process is another important mechanism for the dissolution and precipitation of carbonate and the formation of secondary porosity. The changing of the fluids saturation to carbonate is as important as the upward migration of hydrothermal fluids along fault. Our study reveals that the burial history of Feixianguan Formation, NE Sichuan is more favorable to the dissolution of carbonate during burial diagenesis. The main feature is that the present burial depth is not the deepest buried depth. TSR occurred at the deepest buried depth. Then, the continuous uplift of the basin causes the decrease of the temperature and the dissolution of carbonate. The formation of related secondary porosity results in the changing of rock mechanics, which can be balanced out with the decreasing overlying load. Therefore the secondary porosity can be preserved and the reservoir quality can be improved. On the contrary, Ordovician burial history in Northern Tarim Basin is not favorable to the dissolution of carbonate in buried diagenesis. The main feature is that the present buried depth is the deepest burial depth. The continuous subsidence of the basin after paleokarst could lead to the decrease of the temperature and the precipitation of carbonate, combined with the increase of overlying load that result in the compacting, the quality of reservoir would be severe degradated.