Abstract:Based on the perspective of mixed ownership reform, using the panel data of manufacturing listed companies in 2012-2015, the two-stage DEA model is constructed according to the two-stage characteristics of innovation generation and innovation transformation, and the two- Innovation Efficiency of Mixed Manufacturing Enterprises in Chinese Manufacturing Industry. The results show that: (1) Manufacturing industry mixed ownership of the two-stage innovation efficiency as a whole higher, innovation results generation stage and technological transformation stage of the overall efficiency of more than 0.6 enterprises accounted for 95.92% and 100% (2) In the case of the two-stage innovation, the innovation efficiency of the manufacturing enterprises is higher than that of the enterprise. DEA effective enterprise, its inefficiency is mainly due to the pure technological innovation efficiency is not high, and the scale of efficiency is relatively high level, can support the development of enterprise innovation efficiency; (3) The technological innovation of the mixed manufacturing enterprises has obvious stage, the efficiency of the innovation transformation stage is better and the efficiency of the innovation generation stage is low, which seriously restricts the development of technological innovation.;(4) The main bottleneck in the stage of innovation is the lack of output. The main bottleneck of the innovation transformation stage is that the intangible assets and human capital investment are redundant, and the capital investment is relatively reasonable. The two stages are the irrational problem of the input-output structure. Finally, the relevant policy recommendations.