Under the background of "dual carbon", the coupling and coordination relationship between enterprise technological innovation and pollution reduction and carbon reduction were measured. On this basis, the influencing factors of the coupling and coordination through panel vector autoregressive model were further explored, so as to clarify the current situation of the coordinated development of heavy polluting enterprises. The empirical results show that the change of coupling coordination degree between technological innovation and carbon reduction mainly depends on the level of technological innovation of enterprises. From 2012 to 2021, the coupling coordination degree fluctuates between the reluctant coordination and the intermediate coordination, mainly concentrates in the primary coordination stage, and the coupling coordination effect is good. The influence of environmental regulation and digitization degree on coupling coordination degree is significantly positive, which can promote the development of coupling coordination.