Abstract: To understand the status of early resources of drifting egg fishes, we carried out surveys on the fishes at early life history stage in the Yalong River estuary located in Yanbian County from June to July in 2016-2018. The results showed that five species of drifting egg fishes were identified, belonging to two families and one order. Three endemic fishes of the upper Yangtze River were identified among the five species, namely Leptobotia elongata, Jinshaia sinensisand Jinshaia abbreviata. The abundance of fish eggs flowed through the Yalong River estuary was 3.5×10⁶, 13.78×10⁶ and 3.87×10⁶ ind from 2016 to 2018, respectively. There were eight spawning peaks during surveys (2, 4, and 2 times in 2016, 2017 and 2018 respectively). The main spawning period of fishes was in the middle and late June. It was estimated that Yanbian County and Deshi Town of Miyi County in Panzhihua were the main spawning grounds for drifting eggs in the Yalong River estuary.