Data transmission method and device, equipment and storage medium

The embodiment of the invention provides a data transmission method and device, equipment and a storage medium, which are used for quickly clearing a retransmission storm and quickly recovering a transmission link. Comprising the steps that a second terminal receives a message loss indication sent by a first terminal, the message loss indication is sent when the first terminal determines that a retransmission storm occurs in a transmission link according to a retransmission storm threshold value and is used for indicating that the retransmission storm occurs in the transmission link, and the transmission link is a data transmission link between the first terminal and the second terminal; when the second terminal cuts off the transmission link according to the message loss indication, the second terminal reduces a first code rate to obtain a second code rate, and the first code rate is the code rate of the message in the transmission link when the retransmission storm occurs; the second terminal generates a ke