The invention relates to the field of solid rocket propulsion technologies, in particular to a thrust tailing residual inhibition time control device for a solid rocket engine. A plurality of false residual gunpowder strips are arranged on the inner wall of a solid rocket combustion chamber and are made of EPDM rubber or B703-4/5-III materials. The control device has the advantages that the time at the thrust tailing stage of the solid rocket engine can be effectively shortened, the effect of inhibiting the thrust tailing stage of the engine is achieved, and stage separation between the engine and projectiles is more facilitated.