Solar navigation mark alarm device

The utility model discloses a solar energy navigation mark alarm device comprising a detection device used for detecting a preset subject matter in a preset scope and generating a detection feedback signal; the controller is used for controlling whether the alarm device triggers alarm or not according to the detection feedback signal; when the preset subject matter enters the preset dangerous area or the preset early warning area, triggering an alarm; the alarm device is used for giving an alarm according to the alarm instruction of the controller; the power supply device is used for supplying power to the detection device, the controller and the alarm device; the power supply device at least comprises a plurality of solar panels used for receiving solar energy, a converter used for converting the solar energy into electric energy and a battery used for storing the electric energy, according to the navigation mark, the function of a sound navigation mark and the function of a visual navigation mark are integr