The utility model discloses an integrated tubular column capable of realizing layered sand prevention and layered oil production, which resolves the contradiction that a plurality of oil layer sand prevention wells are obvious in interlayer contradiction, severe in interlayer interference and low in exploitation corresponding rate and storage utilization rate of non-main layers. The integrated tubular column can complete layered sand prevention and layered oil production by one-step operation of the tubular column, and comprises an oil pipe, a setting release, a gravel filling tool, layering packers, a switch type sand prevention pipe and a plug, a liquid-control layered switch, the switch type sand prevention pipe and a mechanical switch are successively arranged on layers of the lower end of the gravel filling tool, and the layering packers are arranged among the layers of the lower end of the gravel filling tool. The integrated tubular column is applicable to multiple-oil-layer sand prevention and oil production process, can also be used for single-oil-layers, can realize layered sand prevention for a total loosed sandstone oil storage well by one-step operation, can realize single production, separated production and combined production for oil wells, plays capacities of medium and low permeability layers to the utmost extent, increases oil production speed, and improves development effect.