4 items. A method for preparing hawthorn wall-breaking fine powder, which uses airflow crushing technology to crush hawthorn, which can achieve rapid wall breaking of hawthorn and improve the wall breaking efficiency. A device for preparing hawthorn wall-broken fine powder, which includes a crushing device, a conveying device, a dust removal device, etc., which can realize continuous crushing and dust removal of hawthorn and improve production efficiency. A crushing device for preparing hawthorn wall-broken fine powder, which includes a crushing chamber, a feed port, a discharge port, etc., and can realize rapid crushing and discharging of hawthorn. A dust removal device for preparing hawthorn wall-broken fine powder, which includes a dust removal box, a dust removal fan, etc., and can collect and process the dust generated during the hawthorn crushing process.