The men were working for Moriah Technologies based out of the Metroplex.
Sgt. Simon Dwyer with the Archer County Sheriff's Office says the men were climbing down when the safety line attached to them malfunctioned.
Dwyer says the men fell from 30 to 35 feet up on the tower.
Dwyer says one of the men, a 32-year-old from North Carolina, suffered a ruptured spleen, a lacerated arm and fractured his back.
A 24-year-old man, from Arkansas also fell, suffering extensive injuries according to sgt. Dwyer.
It happened just before 5 Wednesday night just west of Archer City on Highway 25.
A helicopter from Wichita Falls and one from Mineral Wells were used to airlift the victims to united regional.