The utility model discloses an angle-adjustable electric power communication signal transmitting device. The device comprises a fixed base, a rotating base is rotatably connected to the top of the fixed base, balls are rotatably connected to the left side and the right side of the bottom of the rotating base, a tooth ring is fixedly connected to the outer portion of the rotating base, and a supporting base is fixedly connected to the left side of the top of the rotating base. The utility model has a reasonable structure, the pushing mechanism pushes the pushing piston to move leftwards in thepower box; the check valve is closed to compress the gas in the power box; at the moment, the pushing piston drives the toothed plate to move leftwards; when the toothed plate moves leftwards, the toothed ring and the rotating seat can be driven to rotate synchronously; the gas in the power box can be pushed into the mounting base and the telescopic rod by opening and moving the push piston through the check valve, so that the telescopic rod extends, the telescopic rod can push the signal transmitter to rotate around the supporting base when extending, and the angle of the signal transmitter can be adjusted in different directions.