Abstract: The manual mechanical installation of grounding wire is time-consuming and laborious for operation and maintenance personnel due to the laborious manual rotation of operating rod, grounding end screw and jamming of ground pile installation.At present, the average installation time of grounding wire is 12.3 min, which is not required by the high quality production target of 10 min. The QC team can shorten the installation time of grounding wire to 8.73 min by finding out the crux of the problem and working out the corresponding countermeasures, and achieve the goal and improve the economic benefits at the same time.