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The bandwidth delay of big data communication will lead to communication congestion failure and affect the normal operation of the communication network. Therefore, the bandwidth delay sensing congestion control technology of big data communication based on adaptive forwarding is proposed. According to the composition structure and communication principle of the communication network, build a big data communication network model. In this model, the bandwidth delay of big data communication is collected, and the congestion status of the current communication network is sensed through feature extraction and matching. For the communication channel in congestion state, the congestion control volume is calculated under the condition of considering the communication bandwidth, and the communication bandwidth is scheduled and allocated by using adaptive forwarding technology. With the support of differential flow transmission control protocol, the large data communication bandwidth delay-aware congestion control is realized. Through the congestion control effect test experiment, it is concluded that compared with the traditional congestion control technology, under the control of the optimization design technology, the throughput of the mobile communication network has increased, the bandwidth delay has decreased by 149.3 ms, and the communication error rate has decreased by 0.037%, that is, the optimization design technology has obvious advantages in the congestion control effect.