The invention discloses an energy-saving tunnel traffic lane indicator, and relates to the technical field of traffic lane indicators, the energy-saving tunnel traffic lane indicator comprises a main body, the upper side of the main body is fixedly connected with a mounting rod, the upper end of the mounting rod is fixedly connected with a mounting disc, the lower side of the main body is fixedly connected with a bottom plate, and the upper side of the bottom plate is provided with a wind shielding unit; the wind shielding unit comprises a guide plate, the guide plate is fixedly connected to the upper side of the bottom plate, two guide blocks are slidably connected to the outer side of the guide plate, a vertical plate is fixedly connected to the upper sides of the guide blocks, and a mounting block is fixedly connected to the outer side of the vertical plate. According to the energy-saving tunnel traffic lane indicator, the two arc-shaped wind shields are arranged on the indicator, when external strong wind exists, the fan blades are pushed to rotate, the wind shields on the two sides are controlled to be close to each other, the wind shields shield the external strong wind, the strong wind is dispersed to the two sides, the influence of the external strong wind on the indicator is reduced, and the indicator is prevented from falling off.