A method for adjusting volume, comprising: on a control device, acquiring noise information on ambient noise, during playback of audio on a playback device; and on the control device, adjusting the volume of the audio on the playback device based on the noise information, comprising: acquiring amplitude of the ambient noise from the noise information; acquiring a volume adjustment parameter corresponding to the amplitude of the ambient noise, wherein the volume adjustment parameter is a predetermined volume adjustment value or a predetermined volume adjustment ratio; generating a control instruction for adjusting the volume of the audio based on the noise information; and sending the control instruction to the playback device to trigger the playback device to adjust the volume of the audio based on the noise information; wherein the control instruction comprises instructions to: turn down the volume of the audio based on the volume adjustment parameter when the amplitude of the ambient noise is below or equal to a second predetermined threshold for a period exceeding a predetermined value; turn up the volume of the audio based on the volume adjustment parameter when the amplitude of the ambient noise is above or equal to a first predetermined threshold for a period exceeding a predetermined value; the method characterised by comprising: recording an original volume of the audio, wherein the original volume is a volume set by a user before adjusting volume of the audio based on the noise information; and after turning up the volume of the audio based on the volume adjustment parameter, turn down the volume of the audio to the original volume of the audio, when the amplitude of the ambient noise is detected to decrease. on a control device, acquiring noise information on ambient noise, during playback of audio on a playback device; and on the control device, adjusting the volume of the audio on the playback device based on the noise information, comprising: acquiring amplitude of the ambient noise from the noise information; acquiring a volume adjustment parameter corresponding to the amplitude of the ambient noise, wherein the volume adjustment parameter is a predetermined volume adjustment value or a predetermined volume adjustment ratio; generating a control instruction for adjusting the volume of the audio based on the noise information; and sending the control instruction to the playback device to trigger the playback device to adjust the volume of the audio based on the noise information; acquiring amplitude of the ambient noise from the noise information; acquiring a volume adjustment parameter corresponding to the amplitude of the ambient noise, wherein the volume adjustment parameter is a predetermined volume adjustment value or a predetermined volume adjustment ratio; generating a control instruction for adjusting the volume of the audio based on the noise information; and sending the control instruction to the playback device to trigger the playback device to adjust the volume of the audio based on the noise information; wherein the control instruction comprises instructions to: turn down the volume of the audio based on the volume adjustment parameter when the amplitude of the ambient noise is below or equal to a second predetermined threshold for a period exceeding a predetermined value; turn up the volume of the audio based on the volume adjustment parameter when the amplitude of the ambient noise is above or equal to a first predetermined threshold for a period exceeding a predetermined value; the method characterised by comprising: recording an original volume of the audio, wherein the original volume is a volume set by a user before adjusting volume of the audio based on the noise information; and after turning up the volume of the audio based on the volume adjustment parameter, turn down the volume of the audio to the original volume of the audio, when the amplitude of the ambient noise is detected to decrease. turn down the volume of the audio based on the volume adjustment parameter when the amplitude of the ambient noise is below or equal to a second predetermined threshold for a period exceeding a predetermined value; turn up the volume of the audio based on the volume adjustment parameter when the amplitude of the ambient noise is above or equal to a first predetermined threshold for a period exceeding a predetermined value; the method characterised by comprising: recording an original volume of the audio, wherein the original volume is a volume set by a user before adjusting volume of the audio based on the noise information; and after turning up the volume of the audio based on the volume adjustment parameter, turn down the volume of the audio to the original volume of the audio, when the amplitude of the ambient noise is detected to decrease. recording an original volume of the audio, wherein the original volume is a volume set by a user before adjusting volume of the audio based on the noise information; and after turning up the volume of the audio based on the volume adjustment parameter, turn down the volume of the audio to the original volume of the audio, when the amplitude of the ambient noise is detected to decrease.