Disclosed are an IAB link control method, a communication unit and a computer-readable storage medium. The communication unit receives control information sent by a CU, and an operation corresponding to the control information is executed according to the control information, where the communication unit includes at least one of an IAB, a terminal, a DU, a terminal part of an IAB, a DU part of an IAB or a relay. The communication unit performs a corresponding control operation on an IAB link according to the control information sent by the CU, so as to reduce an interruption delay.