The utility model discloses a rod-type pillar lightning arrester with a separation indication function. Supporting column lightning arrester body, Wiring busbar, wherein the pillar lightning arresterbody comprises an upper electrode, a composite outer sleeve umbrella skirt, an epoxy insulating rod, an annular resistor disc, a lower electrode and a fixing terminal, the upper electrode, the annularresistor disc, the lower electrode and the fixing terminal are sequentially arranged on the epoxy insulating rod from top to bottom, and the composite outer sleeve umbrella skirt is arranged on the epoxy insulating rod in a sleeving manner; The wiring busbar is arranged at the top end of the upper electrode; The insulating cover is fixed outside the wiring busbar; The grounding pull rod is arranged at the top end of the insulating cover and is connected with the wiring busbar; One end of the separating device is connected with the lower electrode, and the other end is grounded. The rod type pillar lightning arrester with the separation indication function is smaller and more compact in size, more flexible and convenient to install, and safer, more stable and more reliable in long-term useperformance.