With economic globalization, more and more Chinese state-owned enterprises establish overseas presence. In a more complex environment, state-owned enterprises find it crucial to launch public relations campaigns to improve their international images. Under the framework of Excellence Theory, this study attempts to examine the characteristics of public relation models of state-owned enterprises and the relationship between the public relations model and international communication effectiveness. The results suggest that one-way/two-way communication distinguishes the public relations models of state-owned enterprises. Two-way communication has a positive influence on international communication effectiveness. However, compared with organizational size and the nature of the state-owned enterprises, the public relations model does not independently explain the variance in international communication effectiveness.