A near field communication system, wherein the near field communication system comprises a first electronic device, a second electronic device (Sound box 1), and a third electronic device (Sound box 2), the first electronic device has a near field communication NFC function, and the second electronic device comprises an NFC tag; wherein the first electronic device is configured to: when a user touches the NFC tag of the second electronic device (Sound box 1) by using the first electronic device, read connection information stored in the NFC tag, and establish a first wireless connection to the second electronic device (Sound box 1) based on the connection information and determine that the first electronic device establishes a second wireless connection to the third electronic device (Sound box 2); the first electronic device is further configured to: obtain current scenario information, and determine, based on the current scenario information, that an intention of the user to touch the NFC tag of the second electronic device (Sound box 1) by using the first electronic device is to synchronize the audio being played on the first electronic device with the second electronic device and the third electronic device for playing; the first electronic device is further configured to: send first audio channel data to the second electronic device through the first wireless connection, and send second audio channel data to the third electronic device (Sound box 2) through the second wireless connection, wherein the first audio channel data and the second audio channel data are two pieces of audio channel data comprised in audio being played on the first electronic device; and the second electronic device (Sound box 1) is configured to receive the first audio channel data through the first wireless connection and play the first audio channel data, and the third electronic device (Sound box 2) is configured to receive the second audio channel data through the second wireless connection and play the second audio channel data, to implement stereo audio output. the first electronic device is configured to: when a user touches the NFC tag of the second electronic device (Sound box 1) by using the first electronic device, read connection information stored in the NFC tag, and establish a first wireless connection to the second electronic device (Sound box 1) based on the connection information and determine that the first electronic device establishes a second wireless connection to the third electronic device (Sound box 2); the first electronic device is further configured to: obtain current scenario information, and determine, based on the current scenario information, that an intention of the user to touch the NFC tag of the second electronic device (Sound box 1) by using the first electronic device is to synchronize the audio being played on the first electronic device with the second electronic device and the third electronic device for playing; the first electronic device is further configured to: send first audio channel data to the second electronic device through the first wireless connection, and send second audio channel data to the third electronic device (Sound box 2) through the second wireless connection, wherein the first audio channel data and the second audio channel data are two pieces of audio channel data comprised in audio being played on the first electronic device; and the second electronic device (Sound box 1) is configured to receive the first audio channel data through the first wireless connection and play the first audio channel data, and the third electronic device (Sound box 2) is configured to receive the second audio channel data through the second wireless connection and play the second audio channel data, to implement stereo audio output.