A method of wireless audio synchronization, applicable to a wireless audio playback device, comprising: sampling, based on a first local clock signal of the wireless audio playback device, a received wireless signal to acquire a sample sequence, and demodulating the sample sequence to acquire a wireless data packet comprising a synchronization segment and a data segment, wherein the synchronization segment comprises a synchronization sequence having a fixed pattern, the data segment comprises coded audio data, and the wireless signal is transmitted by a wireless audio transmitting device regularly according to a local clock signal of the wireless audio transmitting device; performing similarity matching on subsequences extracted from the sample sequence using a time sliding window, with a preset local synchronization sequence of the wireless audio playback device, and determining a peak moment corresponding to a maximum one of a plurality of matching values acquired by the similarity matching, wherein each of the subsequences has the same length as the preset synchronization sequence, and the preset synchronization sequence corresponds to a fixed position of the synchronization segment; counting, based on the first local clock signal, a time difference between peak moments respectively corresponding to a current wireless data packet and a previous wireless data packet, and adjusting a clock cycle of the first local clock signal based on a result of the counting so that the result of the counting of the time difference between two adjacent peak moments approaches a predetermined count value that is determined based on the local clock signal of the wireless audio transmitting device according to a transmission cycle in which the wireless audio transmitting device transmits the wireless signal; and playing, after a predetermined number of clock cycles of the first local clock signal from the peak moment corresponding to the current wireless data packet, the data segment or a preset part thereof according to a second local clock signal of the wireless audio playback device, wherein there is a fixed frequency multiple relationship between the first local clock signal and the second local clock signal. sampling, based on a first local clock signal of the wireless audio playback device, a received wireless signal to acquire a sample sequence, and demodulating the sample sequence to acquire a wireless data packet comprising a synchronization segment and a data segment, wherein the synchronization segment comprises a synchronization sequence having a fixed pattern, the data segment comprises coded audio data, and the wireless signal is transmitted by a wireless audio transmitting device regularly according to a local clock signal of the wireless audio transmitting device; performing similarity matching on subsequences extracted from the sample sequence using a time sliding window, with a preset local synchronization sequence of the wireless audio playback device, and determining a peak moment corresponding to a maximum one of a plurality of matching values acquired by the similarity matching, wherein each of the subsequences has the same length as the preset synchronization sequence, and the preset synchronization sequence corresponds to a fixed position of the synchronization segment; counting, based on the first local clock signal, a time difference between peak moments respectively corresponding to a current wireless data packet and a previous wireless data packet, and adjusting a clock cycle of the first local clock signal based on a result of the counting so that the result of the counting of the time difference between two adjacent peak moments approaches a predetermined count value that is determined based on the local clock signal of the wireless audio transmitting device according to a transmission cycle in which the wireless audio transmitting device transmits the wireless signal; and playing, after a predetermined number of clock cycles of the first local clock signal from the peak moment corresponding to the current wireless data packet, the data segment or a preset part thereof according to a second local clock signal of the wireless audio playback device, wherein there is a fixed frequency multiple relationship between the first local clock signal and the second local clock signal.