Outdoor carbon sink science popularization device

The utility model discloses an outdoor carbon sink science popularization device, and belongs to the field of science popularization devices. Comprising a cross-shaped main supporting structure formed by welding a plurality of steel members, a microalgae photo-biological reaction container which is horizontally arranged at the upper part of the main supporting structure and of which the horizontal section is shaped like or approximately shaped like a circular ring, and a fixing bracket for connecting the main supporting structure and the microalgae photo-biological reaction container, the plurality of ecological ornaments are hung on the fixing support, and the annular display screen is arranged in the middle of the main supporting structure. According to the utility model, a science popularization environment is created and science popularization knowledge is spread through virtuality and reality, a better display effect is achieved, user experience and fun are improved, and improvement of a science populari