The invention discloses a novel use of an adenosine A2A receptor stimulant. The invention provides an application of the adenosine A2A receptor stimulant in preparing a product. The adenosine A2A receptor stimulant can be used for relieving inhibiting effects of alcohol exposure during a gestation period on filial-generation medullary respiratory center. The inhibiting effects of alcohol exposure during the gestation period on filial-generation medullary respiratory center are (a) and/or (b) and/or (c): (a) shortening an inspiration time course of hypoglossal nerve root basic rhythmic respiration discharging; (b) prolonging a respiratory cycle of the hypoglossal nerve root basic rhythmic respiration discharging; and (c) lowering discharging integral amplitude of the hypoglossal nerve root basic rhythmic respiration discharging. The novel use disclosed by the invention can be used for providing a new thought and experimental basis for clinical prevention and treatment of ethanol intake during the gestation period.