The utility model provides an alarming guardrail of electric power equipment. An upper cross rod and a lower cross rod are connected between two column rods of column bases; the upper cross rod and the lower cross rod are spaced, and vertical rods are mounted between the upper cross rod and the lower cross rod through horizontal and vertical rod fastening bolts; a rod head provided with a tip and an insertion part is mounted at the upper part of each vertical rod in an inserting manner; a solar panel supporting rod is fixed on the upper cross rod through a screw; a solar panel is mounted at the upper part of the solar panel supporting rod; an induction wire is inserted into the upper cross rod in a penetrating manner; the induction wire is connected with an alarm provided with a sounder and an alarm lamp; a storage battery is mounted inside each column rod; the power supply of each storage battery is connected with the induction wire and the alarm. According to the utility model, the alarming guardrail is manufactured through the procedures of resin-based raw material batching, square tube or flat square tube pulling extrusion formation, column base and rod head pressing formation and assembling; the alarming guardrail can prevent theft, reduces the incidence of safety accidents, has the characteristics of corrosion prevention, high strength, good structural property, mechanization of production, and simplicity in mounting, and is suitable for being applied as a guardrail for the protection of the electric power equipment.