Abstract: Orchard air-assisted spraying technology is developing towards intelligent and precise, as one of the main control objects of orchard air-assisted spraying,airflow adjustment is essential to achieve precise spraying according to the requirements of fruit trees in orchard air-assisted spraying.In this paper,the research progress analysis focuses on three methodologies:the fan, the influence of airflow on the spraying effect,the airflow adjustment method and equipment.It describes the common fan type and the fan selection principle of the air-assisted sprayer,and the influence of airflow adjustment on deposition and drift of the spray liquid, thus indicating the importance of airflow adjustment.On this basis, the research results on airflow adjustment methods and equipment of the domestic and foreign scholars and enterprises are analyzed, and the problems and future development directions about the airflow adjustment methods of air-assisted spraying are summarized.It provides a reference for the subsequent research on the airflow adjustment methods of air-assisted spraying in future.