In view of the problems of high difficulty in construction management organization and high requirements for construction technology preparation in the TB Hydropower Station, combined with the actual situation of TB Hydropower Station, an analysis was conducted on the rapid roller-compacted concrete (RCC) dam construction technology in the new era. Research and application were carried out on key technologies such as the layout for material placement, the flat-layer continuous lifting technology, the inclined-layer cyclic construction technology, the rapid construction technology across gallery layers, the rapid construction technology across the middle outlet, the technology of synchronous lifting of the guide wall and the roller-compacted concrete, and the separate pouring of the spillway surface. Technical breakthroughs were achieved, such as the “continuous rise of 18 m at one time” in the flat layer during the low-temperature season and the adoption of the 6-meter inclined-layer construction with a cycle of 10.d for the placement area exceeding 10 000 m² in the high-temperature season, showing the advantages of the rapid construction of the RCC dam construction technology.