Abstract: Aiming at the problem of the acute shortage of CO₂ in winter production of cut Anthurium andraeanum in solar greenhouse, the effect of CO₂ fertilization on photosynthetic characteristics and growth performance of A. andraeanum ‘Fire’ was investigated. Three treatments with different concentrations of CO₂ were designed, i.e., 700, 1000 and 1300 μmol·mol^-1, with receiving no extra CO₂ as the control. The results showed that for the CO₂-fertilized plants, the photosynthetic rate, intercellular CO₂ concentration and water use efficiency were significantly greater than those in the control plants after CO₂ fertilization for 60 days, and the largest increase range was observed in the 1000 μmol·mol^-1 CO₂ treatment, whereas the stomata conductance was significantly reduced compared with the control. Meanwhile, the contents of soluble sugar, starch and soluble protein in CO₂-fertilized plants were significantly higher than those in control plants. Moreover, the quality of cut flowers with CO₂ fertilization was remarkably superior to control flowers in term of the parameters including spathe size, spathe color, peduncle length, leaf growth performance and peduncle growth rate. The most superior improvement was observed in the 1000 μmol·mol^-1 CO₂ treatment. It was therefore concluded that CO₂ fertilization of 1000 μmol·mol^-1 could effectively improve the winter production of cut A. andraeanum in solar greenhouse.