Abstract:Based on the heterogeneity of enterprise technology, this paper uses DEA model and meta-frontier theory to study the scientific and technological innovation efficiency gap and dynamic trend of different properties enterprises in Zhejiang Province from 2006 to 2017, We also analyzes the technology gap, change trend and the source of efficiency loss among different enterprises. The results show that:(1) From 2006 to 2017, the average efficiency of scientific and technological innovation of different enterprises in Zhejiang Province was low. The average efficiency of scientific and technological innovation of foreign-funded enterprises, Hong Kong, Macao, Taiwan funded enterprises and domestic funded enterprises decreases in turn, but the gap is small. Among domestic enterprises, private enterprises have the highest efficiency in scientific and technological innovation, while collective enterprises and joint-stock cooperative enterprises have the lower efficiency. It makes the domestic enterprises in the lowest efficiency by the efficiency difference between enterprises. In the past 12 years, domestic enterprises have been catching up in the efficiency of scientific and technological innovation, and surpassed foreign, Hong Kong, Macao and Taiwan enterprises in 2017.(2) The mean value of technical efficiency under the meta-frontier shows the optimal production frontier. The technology level of domestic enterprises reflects the best production technology in Zhejiang Province. There is still a gap of 12.3% between foreign-funded enterprises and the best innovation technology in Zhejiang Province. During the investigation period, the technology gap has been relatively balanced and gradually narrow. There is a big gap between the technological environment of Hong Kong, Macao and Taiwan invested enterprises and the optimal technology of Zhejiang Province in 2006 and 2007, but the technological gap is becoming smaller in the past 10 years.(3) The root of the loss of the efficiency in domestic enterprises and foreign-funded enterprises lies in the low level of management, The loss of efficiency of Hong Kong, Macao and Taiwan enterprises comes from poor technical ability and management level.