Audio file playing method and system

The invention discloses an audio file playing method and system. The method comprises the steps that the header information of the downloaded audio file is judged; when the header information of the audio file includes the ID3 mark, the ID3 information in the audio file is continuously downloaded; when the header information of the audio file does not include the ID3 mark, the request is transmitted to a song information server to acquire the ID3 information of the audio file; the ID3 information includes the bit rate, the sampling rate and the sampling accuracy of the audio file; and the audio file is played according to the ID3 information. The system comprises a judgment module, an acquisition module and a playing module. According to the audio file playing method and system, the request is transmitted to the song information server to acquire the ID3 information in real time and playing while downloading of the audio field of which the ID3 mark is arranged on the tail part can be realized. 本发明公开了种音频文件播放方法