Known as the “blood” of drilling, the flushing fluid technology is one of the key technologies in the field of drilling. With the rapid development of information technology, the establishment of professional technical database has become a new way to improve the technical level of flushing fluid. In this paper, the geological drilling flushing technology researches, data and application cases are summarized comprehensively and systematicly, the first database for geological drilling flushing fluid in China has been developed to provide technical support for drilling workers in view of the complex formation. The database includes 10 first-level modules and 39 second-level modules, which can realize the functions of flushing fluid design, auxiliary calculation, technical data consulting, etc. A large number of results such as new materials, new systems, new processes, as well as the selection and design of flushing fluid have been released. The database has been made available to Internet users on the China Geological Survey’s “Geological Cloud” platform in October 2022.