Based on the collaborative mechanism of green technology innovation and low carbon development, this paper measures the collaborative relationship between the two at the provincial level in China, and examines the proximity relationship of the inter regional green technology innovation level, the results show that: the overall level of green technology innovation in China is relatively low. In the process of promoting low carbon development, most provinces fail to form the endogenous impetus of green technology innovation, which leads to a low degree of coordinated relationship between the two systems. The eastern coast, the northern coast and the southern coast are the “pilot areas” for green technology innovation, the middle reaches of the Yangtze River, and the middle reaches of Yellow river, the northeast, the southwest have different degrees of technological proximity to the “pilot areas”. Therefore, it is necessary to give full play to the core role of “pilot areas”, and strengthen the endogenous power of provincial green technology innovation by building inter regional innovation cooperation network layer by layer.