The invention discloses a complex wire harness adhesive tape winding process. The process comprises the following steps of 1) performing modeling on a target wire harness according to a binary tree structure; 2) fixing one end of the wire harness and moving a leaf node end of each wire harness to a proper position; 3) winding the wire harness from an Mth layer of a leaf node to a master node by utilizing an adhesive tape automatic winding machine; 4) winding the wire harness from a (M-1)th layer of a node by utilizing the adhesive tape automatic winding machine; when the node is the leaf node, winding the wire harness directly from the node to the master node; when the node is not the leaf node, combining all wire harnesses corresponding to child nodes of the node at the node, and winding the corresponding wire harnesses from the node to the master node; and 5) repeating the step 4) and winding (M-2)th to first layers of nodes until the master node is wound. According to the process, complex wire harnesses can be automatically wound by a device.