On the basis of continuous wet spinning to prepare graphene staple fibers, a wet-fusing assembly technology was developed by Gao et al. [79]. As shown in Fig. 5, the random orientation graphene staple fibers were fused at the lap junction by using the self-fusing phenomenon between graphene oxide fibers. This also indicates that water can make the sample fused to achieve self-healing. And the first non-woven fabric consisting of pure graphene fibers was successfully developed by wet-fusing assembly technology. Its greatest innovation lies in the use of wet fusion assembly method to make graphene fibers fuse at overlap junctions, which greatly enhances the interaction between fibers. Importantly, it is an important sign that graphene fibers with excellent properties will be further promoted to large-scale practical application. Moreover, there are similar work [78,80] and their healing methods, such as electric heating and water, will be discussed in later chapter.