The present disclosure, pertaining to the field of computer technologies, relates to an air purification method and apparatus. The method includes: acquiring (101) plant information of a plant contained in a target detection region, and controlling (102) a target air purification device to enable an air purification function thereof if it is judged, according to the plant information of the plant contained in the target detection region and predetermined reference plant information of the allergy-causing plant, that the target detection region contains the allergy-causing plant and that the allergy-causing plant is in the blooming state. According to the present disclosure, the probability of adverse effects caused by the pollen may be lowered.