Abstract:Parallel flow copper electrolysis refining new technology has been developed for more than 10 years, since the first 720 slots in 2011 large-scale industrial application, current density jumps from 330 A/m2 to 420 A/m2 above, and the new technology has advanced economic and technical indicators. Based on mechanism of development of new technology application, production practice case introduction, technical and economic index comparison and analysis, future prospects for development were mainly discussed. The new technology of parallel flow copper electrolysis has absolute advantages in improving the space-time yield of electrolysis process, which lays a foundation for the research and development of copper deposition technology to achieve chemical and physical quality under extremely high current density in the future.