The invention discloses an installing bracket applicable to an indicating board. The installing bracket comprises an identification box, a sealing cover, an indicating board body and a controller andis characterized in that the identification box is arranged on the bracket, an observing window is arranged on the identification box, and the sealing cover is movably arranged on the identification box; the bottom of the indicating board body is arranged in a bearing groove, the top of the indicating board body is arranged in a pressing groove, the controller is arranged on the outer wall of theidentification box, and a control button and a power line are arranged on the controller. A connecting rod is arranged on the bracket, a balancing weight is arranged on the connecting rod, the stability of the bracket after installing is improved through a bottom plate, the stability of the indicating board body after installing is further improved, it is avoided that in the installing process, the bracket falls, the stability of a municipal indicating board is improved, the using life of the municipal indicating board is prolonged, in the installing process of the bracket, the balancing weight is buried in soil, and the stability of the bracket after installing is further improved.