Reservoirs are important water resources for economic and social sustainable development in Fujian. Using remote sensing images in conjunction with Google Earth and World Map, we identified and mapped 3353 reservoirs with a total surface area of 647.51 km² in Fujian Province. These reservoirs were distributed in 81 counties and accounted for about 0.5% of provincial land area. The majority of these reservoirs (3248) were smaller than 1 km² with a total area of 197.16 km²; while only 105 reservoirs are greater than 1 km² with total area of 450.35 km². The total estimated water storage capacity was 188.18×10⁸ m³, which is roughly equivalent to the storage reported by the Fujian Provincial Department of Water Resources in 2013. Most reservoirs are small in volume because 91.80% of reservoirs (3078) are less than 0.1×10⁸ m³ in storage, while only 8.20% of reservoirs (275) are larger than 0.1×10⁸ m³ and account for approximately 80.31% of the total storage. Further analysis indicates that the spatial distribution of reservoirs is uneven in both density and storage among the nine cities:the density of reservoirs in coastal regions is more than that in inland region, and the large-and medium-sized reservoirs are mainly distributed in the northwest of Fujian, resulting in the water storage in northwest being greater than that in southeast. At present, the reservoir water can not meet the local water needs in most coastal cities due to large human population. The water discharge in all 10 main basins or sub-basins was moderately or strongly impacted by dams, and the water residence time intercepted by the reservoirs varied from 0.053 to 0.341 year. The results of this study provide the basic data for regional water resources management and planning, and also contribute to the protection and sustainable utilization of reservoir water resources.