摘要:UAV is so small and flexible that plays an important role in inspection for Power transmission line, especially at the voltage of 110kV, 220kV, 500kV and so on. Coupled with the development of UAV autonomous intelligent inspection technology, the personnel who should inspect the Power transmission line need not to across mountains or climb up to the power transmission towers to inspect the insulators and other equipment manually, so it has been widely used in the inspection for Power transmission line. The stable controlling of UAV flight is and the data link fusion is the basic guarantee of multiple UAV cluster operation. this paper bases on the mode of cluster operation and analyzing the technology of data link fusion, then puts forward single to multiple mode of Data fusion in RTK, which provides an important reference for the research of multiple UAV cluster operation about inspection.