Glacier mass balance is among the clearest natural indicators of ongoing climate change and is important for the assessment of water resources and sea-level rise. However, few glaciers in southeastern Tibetan Plateau are under continued mass balance measurement. In addition, debris cover is widely present in the glacier ablation areas of southeastern Tibetan Plateau, which affects the melt rate of underlying ice and consequently influences glacier mass balance. Accordingly, overall characteristics of glacier mass balance in this region are not yet clear. Hailuogou catchment is located in the east side of Mount Gongga, southeastern Tibetan Plateau. The dataset of glacier mass balance of Hailuogou catchment for the period 1952-2009 is reconstructed by an energy-mass balance model that accounts for the significance of debris cover and its effect on the ice melt rate, based on observed meteorological data and gridded climate data. These data are stored in TXT format. The model performance is then validated against observed ablation and river runoff in the catchment. This dataset includes mass balance data and equilibrium line altitude data, which can reflect overall variation in the glacier mass changes of Hailuogou catchment during the period 1952-2009. This dataset can be used as basic data for studying glacier change and its response to climate change in the maritime glacierized region of southeastern Tibetan Plateau.