The utility model relates to a production device for controlling chytrid fungus pollution in haematococcus pluvialis. The production device comprises a first-stage photobioreactor and a second-stage photobioreactor, wherein the second-stage photobioreactor is connected with a heat exchanger through a pipeline, the input end of the heat exchanger is connected with a condenser through the pipeline, the output end of the heat exchanger is connected with an absorber through the pipeline, the input end of the absorber is connected with a generator through the pipeline and a solution pump, the output end of the absorber is connected with the generator through the pipeline and a throttling valve, the output end of the generator is connected with the condenser through the pipeline, the input end of the generator is connected with a water tank through the pipeline, and the water tank is connected with smoke gas with waste heat through a residual heat recovery device. The principle is that residual heat in the smoke gas of a factory is mainly utilized for providing energy, and the production device is of a temperature control device for reducing the temperature of a haematococcus pluvialis solution, and can save fuel cost, improve economic benefits, enhance the competitiveness of an enterprise, greatly reduce the emission of waste gas and harmful gas and protect the environment.