The invention aims to provide an intelligent system for detecting a distance from an optical cable to the ground, so as to solve the problem that an inspector needs to judge whether the distance from the optical cable to the ground is less than a safety distance according to experience when inspecting the optical cable in the prior art. The intelligent system comprises a shell body, wherein the upper end of the shell body is provided with a connecting device used for being connected with a hoisting wire, the lower end of the shell body is provided with a distance detection unit used for detecting a distance to ground, a control unit and a power supply device are arranged inside the shell body, the control unit is used for acquiring the distance to ground, judging whether the distance from the optical cable to the ground is safe according to the distance to ground and sending out early warning, the power supply device is used for supplying power to the distance detection unit and the control unit, the connecting device comprises at least one group of clamping arms, and each clamping arm comprises a first rotating arm, a second rotating arm and a bolt used for connecting the first rotating arm and the second rotating arm. The intelligent system has the beneficial technical effects that whether the distance from the optical cable to the ground is safe is judged according to the distance to ground, early warning is sent out, and the inspector does not need to judge whether the distance from the optical cable to the ground is less than the safety distance according to experience.