In order to promote the informatization construction of rural small hydropower stations in Jiangxi province，strengthen the ecological environment construction in the downstream areas of hydropower stations，standardize the management of small hydropower stations and standardize the construction of water conservancy projects，combine the analysis and discussion of the current major ecological drainage methods and flow measurement technology systems，and design set of provincial online monitoring platform for ecological drainage of rural small hydropower stations in Jiangxi province.Use the internet of things and internet technology to obtain ecological drainage data of rural small hydropower stations，supervise the implementation of ecological drainage of rural small hydropower stations，provide data support for the supervision of water conservancy departments in Jiangxi province， and form a hierarchical，efficient and convenient management of small hydropower stations The system provides information support.