In　the　process　of　UHV　tower　formation,　the　hoisting　position　of　components　of　different　heights　is　different　and　the　hoisting　position　is　judged　by　the　naked　eye,　which　leads　to　low　construction　efficiency.　A　set　of　landing　double　rocker　arm　swing　arm　angle　control　system　is　developed.　The　system　mainly　includes　calculation　of　the　expected　inclination　of　the　landing　pole　rocker　arm　based　on　the　geometric　structure　of　the　tower,　the　constant　voltage　frequency　ratio　control　model　of　the　three-phase　asynchronous　motor,　the　dynamics　model　of　the　first-order　speed　transmission　and　the　dynamics　model　of　the　second-order　Angle　of　the　output　end　of　the　rocker　arm.　Finally,　the　simulation　and　field　test　of　the　inclination　control　system　show　that　the　inclination　control　system　can　adjust　the　angle　accurately　and　smoothly,　and　has　certain　disturbance　resistance.　At　the　same　time,　the　field　measured　inclination　adjustment　time　is　also　reduced　by　about　two　minutes,　improving　the　construction　efficiency.