Abstract: A sweetener composition is provided, formed with natural plant extracts including Luo Han Guo fruit extract and sweet stevia extract, and neohesperidin dihydrochalcone (NHDC) as raw materials at a scientific and sound mixing ratio such that the disadvantage of having a strong aftertaste of water is eliminated, and the Chinese herbal medicine taste of the Luo Han Guo fruit and the bitter aftertaste of stevia sugar are effectively shielded. The sweetener composition successfully removes the Chinese herbal medicine taste of Luo Han Guo fruit and the bitter aftertaste of stevia sugar while fully exerting the herbal fresh and sweet taste of the Luo Han Guo fruit extract and the sweet stevia extract, and perfectly combines the sweet aftertaste of mogrosides, so that the sweet taste is maintained and the taste is good, and the sweetener composition of the present invention is well accepted by consumers.