“…Porter [1]; that firms adjust their short-and long-term game behaviors in the supply chain by considering government subsidies [6,32,33]. e same situation also occurs between manufacturers and retailers [34,35], firms and financial institutions [35][36][37][38], and university and industry partnerships [39][40][41]. erefore, the green collaborative innovation development strategy of Chinese equipment manufacturing enterprises is studied, taking horizontal cooperative enterprises as the game subject, and the limited rational behavior of different sizes and types, game participants in decision making due to incomplete information, by constructing the basic model and introducing the model of reward and punishment mechanism, investigating the phenomenon of repeated game cooperation in environmental innovation by the double oligarchic equipment manufacturing enterprises without and with government participation.…”