Abstract: Groundwater is an important part of wetland, which plays an important role in the changes of wetland ecosystem and affects the stability of the whole wetland ecosystem. In order to investigate the change of groundwater depth around Huahu lake in Zoige alpine wetland, we analyzed the data of groundwater depth obtained from 6 locations around Huahu lake in Zoige alpine wetland from 2015 to 2017. The results were as follows: (1) Huahu-3 was the shallowest among the 6 monitoring locations, with an average depth of 14.9 cm (inter-annual variation was 2−34 cm); Huahu-5 was the deepest with groundwater depth, with an average phreatic depth of 128.3 cm (inter-annual variation was 67−197 cm). The maximum difference in annual average groundwater depth was 113.4 cm. (2) On the whole year, the highest groundwater level occurred in February and December, while the lowest in June and September. When comparing average value of annual extreme difference of groundwater depth of each monitoring location in 2015 and 2016, it was found that the annual extreme difference of groundwater depth of Huahu-3 monitoring location was the smallest, only 23.1 cm, while that of Huahu-4 was the largest, reaching 100.5 cm. This suggested that the variation varied greatly not only in groundwater depth among the 6 monitoring locations, but also in the seasonal changes of groundwater depth. Seasonal variation of groundwater depth was smaller in areas with shallower annual groundwater depth, but greater in areas with deeper groundwater depth. In this study, the variations of groundwater depth around Huahu lake in Zoige alpine wetland was analyzed in order to provide relevant data support for the protection and management of Zoige wetland.