Quickly-assembled electric meter box

The utility model relates to a fast-assembly type electric meter box which comprises an electric meter box body and a mounting rack, and the electric meter box body is mounted on the mounting rack. The electric meter box body comprises a box body and a box door, one side of the box body is provided with an opening, one side of the opening is hinged with one side of the box door, the other side of the box door is provided with a door lock for locking the box door, the box body is provided with a wire inlet, and the box door is provided with a plurality of observation windows corresponding to the opening of the box body; the installation frame comprises a frame body, the two sides of the frame body are connected with a wall through expansion screws, a supporting plate is fixedly installed at the lower end of the frame body, a positioning plug pin is fixedly installed on the supporting plate upwards, and a positioning plug hole matched with the positioning plug pin in an inserted mode is formed in the lower end