As a new form of industry that integrates manufacturing and service, manufacturing servitization is not only conducive to high-quality economic development, but also has a positive effect on reducing carbon emissions. Using panel data of 30 provincial sub-sectors in China, this study systematically investigates the effect of manufacturing input servitization on carbon emission reduction. The results showed that input servitization can reduce carbon emissions. Concerning the regional heterogeneity, input servitization plays a relatively more important role in China’s central region. Concerning the industrial heterogeneity, the carbon reduction effect of input servitization in pollution-intensive manufacturing sectors is greater than in non-pollution sectors. Furthermore, the mediating test demonstrates that input servitization reduces carbon emissions by improving technological innovation and optimizing the structure, while technological innovation is more effective in achieving carbon emission reduction. These conclusions show that improving the input servitization level of the manufacturing industry is feasible to coordinating the development of the manufacturing industry and the attaining the goals of China’s carbon emission reduction.