To assure adequate installation and emergency repair of distribution network project under varieties of conditions, we conducted R&D of key technology for efficient installation of outdoor distribution devices as well as application study. We scored achievements in the development of the portable platform-based distribution transformer lifting technology, portable insulated conductor strain clamping technology, adjustable cable fixture and cable gripper remote push-pull device, pole pit warning sign of inverted umbrella type fastening technology, quick cable cutting device, etc. Since 2017, these inventions have been applied in distribution network projects as well as municipal and communication projects in 11 provinces and cities, including Anhui, Guangxi, etc. Success in these applications has yielded additional sales of RMB 321 million and profits of RMB 124 million over the past 3 years.