The utility model discloses an electric-standardized alarming isolating fence which comprises standing rods arranged at intervals and horizontal rods connected between the standing rods. The standing rods and the horizontal rods form a detachable framework structure, a plurality of vertical rods are arranged between every two adjacent standing rods at intervals, the upper ends and the lower ends of the vertical rods are detachably connected with the horizontal rods, and alarming devices are arranged at the top ends of the standing rods. According to the electric-standardized alarming isolating fence, power and voice alarm are integrated, alarm can be given out time to remind people entering dangerous areas, and the safety level of a producing site is improved. The electric-standardized alarming isolating fence is in an assembled design, convenient to carry and store and simple to install. In addition, the site installing time is saved, the labor intensity of operators is reduced, and the work efficiency is effectively improved.