The application discloses a high-efficiency carbon fixation microalgae breeding device, and relates to the technical field of carbon fixation microalgae breeding.The device comprises an elongated
pool, a partition plate is arranged at the middle position of the elongated
pool, so that a loop-shaped channel in the shape of a long strip is formed in the elongated
pool, bottom plates are arranged in the two parallel straight channels of the loop-shaped channel, the upper surfaces of the bottom plates are arranged in an inclined manner, and the inclined directions of the two bottom plates are opposite.Two liquid lifting mechanisms are arranged at the high end positions of the two bottom plates respectively, and are used for lifting the algal liquid in the loop-shaped channel to the high end of the bottom plate, so that the algal liquid flows downward along the upper surface of the bottom plate automatically.Two groups of disturbance mechanisms are arranged on the upper surfaces of the two bottom plates.The algal liquid is driven to form a turbulent state by the bidirectional inclined bottom plates, the liquid lifting mechanism and the disturbance mechanism, the problems of surface light inhibition and bottom dark area are reduced, and the
light energy utilization efficiency of the microalgae is improved significantly.