The invention discloses an energy-saving type cable indicator light and relates to an indicator light in order to solve the problem that cable indication does not exist. A transparent cover body closely covers a shell to form a sealed cavity. Warning marks are pasted to the inner surface of the transparent cover body. Light sources are arranged on the lower portions of the warning marks. A solar cell panel is arranged on the inner surface of the transparent cover body. A human body recognition device is used for inducing whether a human body exists; the output end of the human body recognition device is connected with the human body recognition signal input end of a circuit board; the solar cell panel and the light sources are connected with an energy storage device through the circuit board; the circuit board controls the energy storage device to be connected with the solar cell panel or the light sources and controls the brightness of the light sources; and the circuit board, the energy storage device and the human body recognition device are fixed in the cavity. Due to the method that the solar energy is converted into electric energy to supply power for the light sources and the brightness of the light sources is changed according to the situation that whether a person exists or not, energy is saved, the environment is protected, and the energy-saving type cable indicator light is suitable for indicating cable paths.