Abstract: In allusion to the limitations of the traditional working mode for finding lightning strike trip faults of transmission lines, a new type of lightning strike trip fault fast detection working mode is proposed,which incorporates "historical tripping line section + obstacle detection route planning + RTK unmanned aerial vehicle automatic driving + AI intelligent analysis + manual confirmation". By comparing the two working modes,the fast detection working mode appears significant advantages in terms of operation duration, search efficiency,and investment workload, the digitization, intelligence and the safety level of operations have been improved.