The invention discloses a watt-hour meter integrated protective sleeve comprising a watt-hour meter body. A projective shell is arranged at each of the two sides of the watt-hour meter body. Each protective shell consists of an upper protective shell and a lower protective shell. One end of each lower protective shell is provided with an extending part, and the extending part and the end of the lower protective shell form a clamp slot. A positioning strip with a triangular cross section is arranged on the lower end face of each extending part, and one end of each positioning strip is inserted into the inner side of the corresponding lower protective shell. A bolt is arranged in each through hole. The tail end of each bolt passes through the watt-hour meter body, and is in threaded connection with the corresponding positioning strip. A mounting plate is arranged on a side, facing the corresponding lower protective shell, of each upper protective shell. A positioning slot with an inserted triangular cross section is arranged in each mounting plate. The protective shell structure is arranged on the watt-hour meter body to protect the watt-hour meter body, so that the watt-hour meter body cannot be disassembled from outside, and safety and reliability are achieved.