The invention discloses a method and a system for controlling access control and a storage medium. The method is applied to a parking lot, and the parking lot is provided with an embedded host. The method comprises the following steps of when the embedded host detects that an vehicle is driven into or out of a garage of the parking lot, identifying the feature information of the vehicle; comparingthe identified feature information of the vehicle with the preset feature information of the vehicle; when the comparison is successful, controlling an access control controller of the garage of theparking lot to open the access control, and releasing the vehicle; when the comparison is failed, adopting a preset access control remedy plan to control the releasing of the vehicle. The method has the advantages that the access control of the garage of the parking lot is intelligently controlled, and the management efficiency of the parking lot is improved.