大多数水电站建设在山区峡谷地区，站址地电阻率高，接地装置布置受限制，接地装置的设计要满足规范要求难度较大。针对水电站接地设计、施工的特点，简要介绍百龙滩水电站接地装置的设计、施工和接地电阻测量。 Most hydropower stations are built in mountain canyons, with high site resistivity and limited layout of grounding devices. It is more difficult to design grounding devices to meet the specifications. Aiming at the characteristics of hydropower station grounding design and construction, the design, construction and grounding resistance measurement of grounding device of BLT Hydropower Station are briefly introduced.