Abstract: As for such problems existing in previous service-oriented kill web combat chain construction process as low accuracy, weak structure, difficulty in analysis and correction, a process design method based on business process modeling notation（BPMN）is proposed. Based on the traditional cloud collaborative theory, a cloud-edge collaborative kill web architecture is designed. Then the construction process for the service-oriented combat chain of kill web is analyzed under the guidance of edge the command and control（C2）theory and the correlated business entities and the business links contained in that process are clarified based on the“X-as-a-service”model. Finally, with a three-step business process method, BPMN 2.0 model fragments and their aggregation modes for generating process are designed, and the effectiveness of the method is validated with a case study of a maritime anti-unmanned cluster kill web.