Based on the fifthgeneration global atmospheric reanalysis data (ERA5) of the European Centre for Mediumrange Weather Forecasts (ECMWF) and the CWRMEM method of cloud water resources monitoring and evaluation published by the Center for Weather Modification of China Meteorological Administration, the cloud water resources in the Guangxi region are evaluated from 2009 to 2018. The results show that Guangxi’s average annual cloud water resources are about 5.1×1014kg, including 1.42×1014kg of retaining cloud water. The cloud water is mainly generated in the local region, and the average annual net output cloud water resources are about 1.97×1013kg. The cloud water resources of Guangxi are characterized by seasonal variation, showing a single peak distribution, with the highest value in June and the lowest value in February. However, the retain cloud water is not characterized by seasonal variation. The maximum value of the horizontal distribution of cloud water resources appears in the northeast of Guangxi and gradually decreases to the west and south. Cloud water mainly distributes in the lower layer of the atmosphere, about 925 to 600 hPa, mainly warm stratiform clouds composed of liquid droplets; however, in summer, which appears mainly in a higher layer, about 600 to 400 hPa of atmosphere, mainly mixed cloud water composed of supercooled liquid droplets and ice particles, and the cloud water significantly decreases in a lower layer.