Disclosed is a smart city lighting device, relating to the technical field of smart city apparatuses, and aiming to solve the problem of existing solar panels wherein same are not capable of efficiently absorbing light energy all the time. A lamp tube (11) is installed inside a lampshade (10), a rainproof plate (2) is arranged above the lampshade (10), an adjusting device (3) is arranged above the rainproof plate (2), a driving electric motor (5) is installed inside the adjusting device (3), an output shaft of the driving electric motor (5) is provided with a rotary disc (8), supporting columns (9) are arranged at four corners of the rotary disc (8), a solar panel (4) is installed above the supporting columns (9), a controller (6) is arranged on one side of the driving electric motor (5), a photoelectric sensor (7) is installed on one side above the rainproof plate (2), a plurality of drainage gutters (19) are provided at the periphery of the rainproof plate (2) in an annular array manner, a supporting plate (16) is arranged at the bottom of an installation cavity (12), and a mutual switching device (15) is installed above the supporting plate (16), a photovoltaic inverter (14) is arranged above the mutual switching device (15), and a storage battery (13) is arranged above the photovoltaic inverter (14).
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