A method for adjusting sound quality, the method comprising: acquiring (S 10) a range of coding rates of a wireless audio device, in response to establishing a wireless communication connection directly with the wireless audio device using a BLUETOOTH TM connection within an identifiable range, wherein a host terminal is capable of establishing the wireless communication connection directly with the wireless audio device that is searchable by the host terminal in the identifiable range using the BLUETOOTH TM connection; presetting a first coding rate of the host terminal according to the range of coding rates and a current signal strength of the wireless communication connection, and controlling the host terminal to transmit audio data to the wireless audio device at the first coding rate, wherein the first coding rate is represented as n bit per second, bps, and n is a positive integer, the coding rate is related to a sampling rate, a sampling bit number, and a channel number of the wireless audio device, the coding rate range of the wireless audio device indicates the maximum rate that the codec of the wireless audio device can decode in a unit time; acquiring a throughput during the transmission of the audio data fed back by the wireless audio device, and determining whether the throughput matches a current wireless transmission quality; and adjusting the first coding rate according to a determination result, to adjust the sound quality of the audio data; wherein the operation of acquiring a throughput during the transmission of the audio data fed back by the wireless audio device, and determining whether the throughput matches a current wireless transmission quality comprises: acquiring an actual throughput during the transmission of the audio data fed back by the wireless audio device, when the host terminal transmits the audio data transmission at the first coding rate; and determining whether the actual throughput matches a theoretical throughput corresponding to the first coding rate, and outputting the determination result. acquiring (S 10) a range of coding rates of a wireless audio device, in response to establishing a wireless communication connection directly with the wireless audio device using a BLUETOOTH TM connection within an identifiable range, wherein a host terminal is capable of establishing the wireless communication connection directly with the wireless audio device that is searchable by the host terminal in the identifiable range using the BLUETOOTH TM connection; presetting a first coding rate of the host terminal according to the range of coding rates and a current signal strength of the wireless communication connection, and controlling the host terminal to transmit audio data to the wireless audio device at the first coding rate, wherein the first coding rate is represented as n bit per second, bps, and n is a positive integer, the coding rate is related to a sampling rate, a sampling bit number, and a channel number of the wireless audio device, the coding rate range of the wireless audio device indicates the maximum rate that the codec of the wireless audio device can decode in a unit time; acquiring a throughput during the transmission of the audio data fed back by the wireless audio device, and determining whether the throughput matches a current wireless transmission quality; and adjusting the first coding rate according to a determination result, to adjust the sound quality of the audio data; wherein the operation of acquiring a throughput during the transmission of the audio data fed back by the wireless audio device, and determining whether the throughput matches a current wireless transmission quality comprises: acquiring an actual throughput during the transmission of the audio data fed back by the wireless audio device, when the host terminal transmits the audio data transmission at the first coding rate; and determining whether the actual throughput matches a theoretical throughput corresponding to the first coding rate, and outputting the determination result. acquiring an actual throughput during the transmission of the audio data fed back by the wireless audio device, when the host terminal transmits the audio data transmission at the first coding rate; and determining whether the actual throughput matches a theoretical throughput corresponding to the first coding rate, and outputting the determination result.