The utility model discloses an energy-conserving indicating device is used to electric power, which comprises a base, be equipped with on the base and support a section of thick bamboo, it is equipped with the frame to support the rotation of section of thick bamboo top, the upper end of supporting in the section of thick bamboo is equipped with the motor, the transmission of motor output is connected the frame, the frame top is equipped with solar cell panel, frame week is inclined and is equipped with the display screen, be equipped with the battery in the support section of thick bamboo, the top is equipped with rotatory electric interface arrangement in supporting a section of thick bamboo, solar cell panel with the display screen passes through respectively rotatory electric interface arrangement connects the battery, the battery is connected the motor, be equipped with the control unit on the support section of thick bamboo wall, the control unit connection control the motor with the battery. The utility model discloses it is not only energy-concerving and environment-protective, and the warning effect is strong, overall structure is simple, and the cost is low, and the practicality is strong, easily uses widely.