Based on the representative platform of shared manufacturing,Haizhiyun platform is taken as the research object, social network analysis (SNA) was used to explore the network structure characteristics of shared manufacturing platform, and quadratic assignment program (QAP) was used to empirically analyze the influencing factors of shared manufacturing platform network. It is found that the current shared manufacturing platform is in the early stage of development, and the network scale is constantly expanding, but the closeness of the cooperation relationship needs to be further deepened. Haizhiyun and other nodes occupy a core position in the network, with greater power and influence, and the power status of other nodes is also gradually improving. The analysis of cohesive subgroups shows thatt there are many small groups in the shared manufacturing platform, which presents a multi-level pattern. QAP analysis shows that the cooperation network of shared manufacturing platform is affected by economic scale, geographical proximity, knowledge proximity, social proximity, organizational proximity, institutional proximity, policy intensity and industrial proximity. The research results provide help for manufacturing enterprises to better understand shared manufacturing and the development of shared manufacturing platform.