Abstract: With the continuous intensification of industrial technology competition, some industries show obvious trends of repeated innovation and technological convergence, the leading and breakthrough of technological innovation are weakened, and industrial technological progress is slowed down. In order to actively cope with this trend of "involution", it is urgent to make a scientific evaluation of the current degree of industrial technology involution. Firstly, this study clarified the connotation and characteristics of industrial technology involution. Then, we constructed a measurement model based on five dimensions of technological growth, technological difference, technological leadership, technological breakthrough and technological expansiveness to measure the degree of industrial technology involution. Finally, we selected the strategic emerging industries in Shandong Province for empirical study, measuring their technological involution index and analysing the reasons. The model can effectively measure the degree of industrial technology involution and provide a quantitative and process method model for the measurement of industrial technology involution.

Key words: Industrial technology, Technological involution, Involution index, Patent analysis, Measurement model