The utility model provides a transformer substation warehouse height limiting door which comprises a door frame, wherein the door frame comprises two supporting frames and a height limiting rod. Each supporting frame comprises a fixing bottom plate and supporting rods fixed on the fixing bottom plate, sliding grooves are formed in the supporting rods, limit through holes are formed in two ends of the height limiting rod respectively, a plurality of pairs of limit holes matched with the limit through holes are formed in the groove walls of the sliding grooves, pins are arranged in the limit holes, two ends of the height limiting rod are arranged in the sliding grooves respectively, the pins are respectively arranged in the limit holes and the limit through holes in a penetrating manner, door sill sliding grooves are formed in the bottoms of the supporting rods, and a door sill is arranged in the door sill sliding grooves. The transformer substation warehouse height limiting door has the advantages that the height limiting door is scientific in design, high in practicability, simple in structure and fine in height limiting effect, and the door sill can be dissembled.