PROBLEM TO BE SOLVED: To provide food, pharmaceutical, and animal feed compositions and the like useful for promoting hematopoietic function or for preventing and/or improving anemia.SOLUTION: A culture composition of microorganisms belonging to Aureobasidium sp. is used as an active ingredient of a composition used for promoting hematopoietic function or preventing and/or improving anemia. The culture composition of microorganisms belonging to Aureobasidium sp. is also used for producing the composition used for promoting hematopoietic function or preventing and/or improving anemia. This composition is suitably used for foods, pharmaceuticals, animal feed, and the like.SELECTED DRAWING: None