The present application discloses methods and apparatuses for implementing an accessibility function in applications. One example method includes receiving, by an application, a request for invoking an input control unit, where the input control unit is then invoked. A determination is made as to whether an event corresponding to an accessibility function is triggered by using the input control unit, and, in response to determining that the event corresponding to the accessibility function is triggered by using the input control unit, a service feedback instruction corresponding to the event is determined. An accessibility function engine of a device that comprises the application is invoked, and the accessibility function is implemented.