To build socialist modernization comprehensively， it is necessary to explore the inclusive carbon reduction path with Chinese characteristics， and it is essential to give consideration to “dual carbon” goal and steady economic growth. Taking technical efficiency as the endogenous transformation medium， it deduced the theoretical mechanism of the parallel evolution of carbon emission reduction and economic growth. Further empirical research based on Chinese provincial panel data shows that： there is a certain primary dependence between economic output and carbon emissions currently， and “carbon decoupling” does not conform to the reality situation of China， while technical efficiency improvement provides an endogenous transformation tool for carbon reduction constraints and economic growth parallelly. The nonlinear research also finds that： when carbon emission growth rate is at different levels， the endogenous driving track of economic growth is changed due to technical efficiency improvement. Only reasonable and appropriate carbon reduction constraints could leverage the optimal endogenous driving force of technical efficiency. In additionally， the endogenous drive of carbon reduction constraints on technical efficiency is spatiotemporal heterogeneity， excessive or low carbon emission constraints are not applicable in the eastern regions， and the central and western regions need a certain tolerance of carbon emissions to release the conjugate dividend of efficiency change and economic growth. The above findings provide theoretical enlightenment of endogenous transformation and quantitative basis of dynamic regulation， which are helpful to promoting carbon peak and carbon neutralization actively and steadily， as well as giving consideration to steady economic growth.