Electrostatic isolator for communication optical fiber

The utility model discloses an electrostatic isolator for a communication optical fiber, which comprises an equipment body, a connecting assembly, a protection module and a branching module, and is characterized in that the connecting assembly comprises a reserved wire which is connected to the side surface of the equipment body and extends outwards, an equipment joint which is arranged at the end of the outer side of the reserved wire, and a positioning bearing which is fixedly sleeved on the outer side of the equipment joint; the protection module comprises shielding layers fixedly connected to the two sides of the equipment body, a shell which is fixedly connected to the outer sides of the shielding layers and has a protection effect, and a substrate welded to the bottom face of the shell. According to the utility model, by adopting the design of the rotatable equipment joint and cooperating with the internal reserved line for common use, when an external cable is subjected to torsion and other acting forc