The invention discloses a Chuzhou chrysanthemum petal suspension beverage containing galacto-oligosaccharides. A formula of the Chuzhou chrysanthemum petal suspension beverage comprises deionized water, Chuzhou chrysanthemum leaching solutions, Chuzhou chrysanthemum petals, the galacto-oligosaccharides, honey, citric acid and a suspension stabilizer; the suspension stabilizer is prepared from gellan gum, calcium lactate and sodium citrate; the Chuzhou chrysanthemum petals are in a suspension state in the liquid beverage. According to the Chuzhou chrysanthemum petal suspension beverage containing the galacto-oligosaccharides and a preparation method thereof, the compound functional beverage which has the advantages of being low in sugar, fresh and cool in mouthfeel, attractive in appearance and capable of clearing heat and loosening the bowels to relieve constipation is developed by taking the Chuzhou chrysanthemum petals, the galacto-oligosaccharides and the honey as the main raw materials and scientifically matching the three components for the problems that in existing varieties of beverages are generally high in sugar content, not beneficial for digestive system balance if the beverage is drunk for a long term and capable of inducing human health hazards such as hyperglycemia.