China's pioneering dark energy radio detection project, the Tianlai experimental array, has officially joined the Square Kilometre Array (SKA) international mega radio astronomy project as a certified SKA Pathfinder. The SKA Pathfinder program integrates cutting-edge scientific installations from around the globe into SKA's realm of scientific and technological innovation. The latest research from these pathfinder projects continues to offer new scientific exploration opportunities and test novel detection technologies for SKA.