The invention provides a freezable beverage which is prepared by mixing, homogenizing and sterilizing sugar, milk powder, grease, an emulsifying agent, a thickening agent, organic acid, citrate and water, wherein the emulsifying agent comprises monoglyceride succinate and sucrose ester, and the thickening agent comprises pectin and propylene glycol alginate. The invention also provides a preparation method of the freezable beverage. According to the preparation method, the monoglyceride succinate and the sucrose ester are taken as the emulsifying agent, the pectin and the propylene glycol alginate are taken as the thickening agent, so that all the raw materials can be processed, stored, transported and sold at normal temperature, the beverage has the taste and flavor of ice cream when being drunk after being frozen, and is delicate, smooth and cool in taste. Experimental results show that the freezable beverage provided by the invention is frozen for 3 hours at the temperature of -18 DEG C and can be drunk after being unfrozen for 5 minutes, has the taste and the flavor of the ice cream and is delicate, smooth and cool in taste.
