Aim and background: Today, the most important characteristic of organizational environments is rapid change, which has caused complexity and reduced the power of organizations in predicting future events and has challenged them on the path to success. In such a situation, an organization alone cannot cope with the complexity and competition. By drawing a new space, the cooperation network has provided the ground for strengthening innovation and increasing competitiveness and survival in the environment for the organization and reduces the existing costs and risks. But what does a cooperation network look like? Method: The present study, following the design of an effective cooperation network model in the Institute of Defense Industries, has identified the dimensions, components and influential elements. In this regard, taking advantage of the existing literature in the field of networks, the basic concepts are identified and using the data theorizing method of the foundation and interviews with experts, professors and defense managers related to the subject, open, pivotal and selective coding has been done Findings: based on the coding, the factors and elements of the model are identified, the model extracted from this research, comparing with previous research, has a more comprehensive look on investigating the various sections. Conclusion: finally, network performance demensions and effective achievement include network structure, network process, network members, nature and topics of cooperation, the conditions of extended cooperation, motivation of network founders and motivation Network Partners has developed a network of cooperation in terms of the range of elements of interest in the defense industry.