The invention discloses a normal-temperature drinking jujube cereal yoghurt and a preparation method thereof, which relate to yoghurt processing. The raw materials are composed of grain enzymatic hydrolysis powder, whole milk powder, white granulated sugar, lactic acid bacteria strains, concentrated jujube juice, compound stabilizer, and the balance is water. Add milk powder into hot water, dissolve and let it stand for hydration to obtain milk powder liquid A; preheat and homogenize milk powder liquid A, sterilize, cool, and ferment to obtain fermented milk base B; put enzymatically hydrolyzed grain powder into hot water to dissolve , after dissolving, carry out colloid mill treatment, after refining, make the grain enzymatic hydrolyzed powder gelatinize, and then obtain the material liquid C after homogenizing under pressure; mix the compound stabilizer and sugar, add it to hot water, and stir to obtain the compound Stabilizer feed liquid D; add red date concentrated juice to water, stir and dissolve to obtain feed liquid E; pour fermented milk base B, feed liquid C and compound stabilizer feed liquid D into the blending tank, stir, then inject feed liquid E, and then Stir and mix, chill, and prepare the liquid after constant volume; filter the constant volume liquid, preheat, degas, homogenize, sterilize, and aseptically fill.