Data transmission method and device, electronic equipment and storage medium

The embodiment of the invention provides a data transmission method and device, electronic equipment and a storage medium. The data transmission method comprises: for each second node, a first node sends an information acquisition request to the second node, the information acquisition request being used for instructing the second node to return an association degree between the second node and the first node and a security value of the second node; receiving the correlation degree and the security value returned by the second node, obtaining the distance between the first node and the second node, and calculating the credibility of the first node to the second node based on the correlation degree, the security value and the distance; and selecting the second node with the highest credibility as a target node, determining a target transmission link based on the target node, and transmitting the to-be-transmitted data of the first node by using the target transmission link. In the embodiment of the application