Abstract: A rice milk according to an embodiment of the present invention includes a mixture of rice protein powder and rice enzyme digestion extract concentrate in purified water. The rice milk using rice protein is suitable for allergy-sensitive elderly and infants to drink and also provides functionality to stressed adults because it has milk properties, high nutritional value and good digestion by mixing rice enzyme decomposition extract obtained by digesting rice starch and rice protein with subsidiary ingredients. In addition a method for preparing a rice milk using rice protein according to an embodiment of the present invention includes a first enzymatic digestion step, a second enzymatic digestion step, a filtration step, a rice protein powdering step, and a rice enzyme extract saccharification solution concentration step.