Integrated logistics is a new way of integrating logistics resources, and the strategic level is regarded as the highest level of integrated logistics. The realization of synergetic management at the strategic level determines the way and direction of synergetic management of integrated logistics. Therefore, the authors of the current study focused on exploring the implementation mechanism of synergetic management of integrated logistics at the strategic level. First, using the experts grading method, the study found that the six key state parameters, namely, strategic value, core competence, resource complementarity, corporate culture compatibility, the mechanism of profit distribution, and cooperative partnership, had an impact on the implementation of synergetic management at the strategic level; further, using the reducedset arithmetic method based on the rough set theory, the study concluded that strategic value and corporate culture compatibility were order parameters of synergetic management at the strategic level; finally, based on the doubleorder parameter self-organizing model, the study found that during the phase transition from competition to collaboration and then from collaboration to coordination, strategic value was the dominant force, and corporate culture compatibility was the auxiliary force; during the phase transition from coordination to synergy, vice versa. The findings of the study not only enrich the literature on synergetic management of logistics supply chain management on the theoretical level, but also provide a new research approach in the management theory for logistics resource integration.