Abstract: According at the base rod collapse and line damage caused by natural disasters, this paper designed a emergency disaster resistance reinforcement device for distribution network in coastal area. Firstly, based on the structure principle and elastic deformation characteristics of connecting rod, different reinforcement schemes of base rod are formulated. Secondly, combined with safety, economy and operability indicators, a combination of holding components, ground components and expansion connection rod is formed. Finally, the support mechanism and mobile mechanism are gradually improved to minimize the time consumption in the process of making, installing, tightening and installing the pull wire pulling, and improve the efficiency and benefit of the base rod reinforcement.