The present invention discloses a method, a system, and a device for controlling media play. The method includes: detecting Dual Tone Multi-Frequency (DTMF) input; and exercising media play control for the detected DTMF input according to mapping information between media play control and the DTMF input. The system includes a controlling device and a processing device. The processing device receives the mapping information between media play control and the DTMF input, and learns which media play control operation maps to the DTMF input of the user according to the mapping information between media play control and the DTMF input after detecting the DTMF key codes input by the user. Therefore, the processing device controls media play independently, without involving control operation performed by the controlling device.