Algae culture device

The utility model discloses an algae culture device, which belongs to the technical field of algae culture and comprises a first water vat and a second water vat which are arranged in a shell, light sources and site counting points are arranged in the first water vat and the second water vat, and illuminometers for detecting illumination intensity are arranged on the site counting points; a ventilation system for introducing gas is arranged between the first water tank and the second water tank; the first water tank and the second water tank are connected with a temperature control circulating system, the temperature control circulating system comprises a plurality of connecting pipes and a water cooling machine, the connecting pipes are used for heating water to a preset temperature, and when the water temperature exceeds the preset temperature, the water cooling machine is used for cooling the water temperature; the connecting pipe, the cooling-water machine, the light source and the illuminometer are elect