The invention discloses vitamin A enhanced armeniaca sibirica and eucommia bark high-grade formula oil and a preparation method thereof. The vitamin A enhanced armeniaca sibirica and eucommia bark high-grade formula oil comprises eucommia bark seed oil, armeniaca sibirica kernel oil and vitamin A and is characterized in that a preparation method of the eucommia bark seed oil comprises the following steps: (1) supercritical extraction of eucommia bark seed crude oil; (2) refining of the eucommia bark seed crude oil; a preparation method of the armeniaca sibirica kernel oil comprises the following steps: (1) debittering pretreatment of armeniaca sibirica kernels; (2) refining of armeniaca sibirica kernel crude oil. The vitamin A enhanced armeniaca sibirica and eucommia bark high-grade formula oil is obtained by mixing the prepared eucommia bark seed oil and armeniaca sibirica kernel oil and adding vitamin A. The vitamin A enhanced armeniaca sibirica and eucommia bark high-grade formula oil and the preparation method have the beneficial effects that the vitamin A intake of people in daily life can be greatly increased by adding vitamin A to the edible oil, thus avoiding dysplasia of children due to lack of vitamin A.