This study examines how state-owned enterprises respond to cultural integration challenges following mergers and acquisitions. We developed an agent-based simulation model using the NK fitness landscape to explore how managerial characteristics influence the effectiveness of cultural integration strategies. The model incorporates both managerial experience dependency and acculturation modes, drawing from prior research to capture the unique decision-making processes of SOEs. The study thoroughly examines the impact of organizational complexity and managerial characteristics on integration success. Findings reveal that excessive reliance on managerial experience hinders the development of newly merged organizations. Additionally, experience dependence has varying effects on acculturation modes, and organizational complexity plays a crucial role in shaping overall outcomes. This research offers managerial insights for post-merger cultural integration in state-owned enterprises and contributes a new perspective to the theoretical understanding of cultural integration in complex environments.