Abstract: The present disclosure discloses an artificial rice and a preparation method thereof. The method includes the following steps: pre-curing quinoa by microwave irradiation after pretreatment; evenly mixing the pre-cured taro whole powder and the pre-cured quinoa powder with a banana powder, a kiwifruit powder and a molecular distillation monoglyceride; and quantitatively adding a tempered composite material into a twin-screw extrusion machine through a feeder; setting a working temperature of a cavity of each machine section of the twin-screw extrusion machine, in which a temperature gradient in Zone I is 45° C. to 65° C., Zone II 75° C. to 95° C., Zone III 115° C. to 135° C., Zone IV 105° C. to 115° C., Zone V 20° C. to 35° C., a rotation speed of a screw is 120 rpm to 370 rpm; obtaining the artificial rice after drying and polishing.