Improved communication optical cable warning board

The utility model designs an improved communication optical cable warning board which comprises a base, a sliding rod is fixedly arranged on the base, a sliding cylinder is arranged on the sliding rodin a sliding and sleeving mode, a base is fixedly arranged on the side wall of the sliding cylinder, an internal thread sleeve is fixedly arranged at the bottom of the base, a screw rod is inserted into the internal thread sleeve in a matched mode, and a finger handle is fixedly connected to the outer side end of the screw rod. The warning board is easy to assemble and disassemble and convenientto move, the two bases which are independent of each other are used for fixing the warning board, placing points are easy to find, disordered cables are not interfered, the warning board is fastened or disassembled by shifting the finger handles, and the warning board is convenient to use. The cable is good in wind resistance, good in adaptability and good in wind resistance, and a practical warning method is provided for