The invention discloses a climbing robot for iron towers. The climbing robot comprises a left foot arm and a right foot arm which are connected through a third joint steering engine, wherein the left foot arm comprises first mechanical arms, a first joint steering engine, a first connecting rod and a first absorption device which are sequentially connected; the first joint steering engine controls the relative deflection angles of the first mechanical arms and the first connecting rod; the first absorption device is fixed at the tail end of the first connecting rod; the right foot arm comprises a second mechanical arm, a second joint steering engine, a second connecting rod and a second absorption device; the second joint steering engine controls the relative deflection angles of the second mechanical arm and the second connecting rod; the second absorption device is fixed at the tail end of the second connecting rod, and the first mechanical arms and the second mechanical arm are connected through a third joint steering engine, and a camera is arranged on the third joint steering engine or the left foot arm or the right foot arm. According to the climbing robot for the iron towers, provided by the invention, shooting realistic views of high altitudes of the iron towers can be realized, artificial climbing for check is not needed, and the risk is reduced.