Deep profile controlling method

The invention discloses a deep profile controlling method. The method is characterized by comprising the steps of dividing multiple oil layers of the same oil field block of a continental oil layer into a plurality of layer series, wherein each layer series has a respective flooding well network, and all the flooding well networks do not interfere with each other; passing water wells of the other layer series are found out as plugging agent injection wells between oil-water wells in a well group to be controlled rather than injecting plugging agents into water wells to be controlled, wherein the layer series of the passing water wells are positioned above or below the layer series of the well group to be controlled; and the passing water wells of the other layer series for injecting the plugging agents are returned to place the plugging agents between oil-water wells of a target oil layer, therefore, a purpose of deep profile control is achieved. The deep profile controlling method disclosed by the invention has the advantages of broad popularization and application prospects and simpleness of field implementation; moreover, just by using the current conventional technology, the deep profile control purpose can be achieved with comparatively low cost.