A nutritional yeast food and method preparing thereof. The nutritional yeast food contains yeast as its major raw material, and comprises milk powder, maltodextrin, lactose, plant grease powder, calcium carbonate, starch, white granulated sugar, and flavoring agent, essence, further comprises folic acid, vitamin B group, vitamin A, vitamin C, selenium-enriched yeast, zinc-enriched yeast, chromium-enriched yeast, iron-enriched yeast, microcrystalline cellulose, dehydrated scallion flake, cocoa powder, fruit and vegetable powder, sesame, milk tea powder, soy milk powder, oat flake. The nutritional yeast food in the forms of powder, snowflake and tablet are obtained through various methods.
