Optical cable joint box is an indispensable connection device in communication optical cables. This product is suitable for connection protection of ADSS/OPGW optical cables. It has the functions of straight-through connection and branch connection. It can seal, protect and place optical fiber connectors and store reserved optical fibers, etc. The effect of protecting it from the influence of external environmental factors can produce six optical cables at the same time and install them on aerial poles and towers.