An electric energy meter mounting and fixing bracket which is of reliable fixation and convenient use comprises a bracket body. An upper portion of the bracket body is provided with an electric energy meter fixing block. A lower portion of the bracket body is provided with a sliding groove. A fixing hole is arranged below the electric energy meter fixing block. A V-shaped bracket is connected inside the sliding groove through a sliding bolt. The V-shaped bracket comprises a left fixing bracket and a right fixing bracket; the lower end of the left fixing bracket is hinged to the lower end of the right fixing bracket; the upper ends of the left fixing bracket and the right fixing bracket are respectively connected with a left flexible bracket and a right flexible bracket; and the left fixing bracket and the right fixing bracket are respectively in threaded connection with a left fixing screw rod and a right fixing screw rod.