Embodiments of the disclosure disclose a method and apparatus for outputting information. A specific embodiment of the method includes: receiving voice information, analyzing the voice information to generate voiceprint information; matching the voiceprint information with at least one piece of pre-stored voiceprint information; outputting, in response to determining the voiceprint information failing to match a piece of pre-stored voiceprint information in the at least one piece of pre-stored voiceprint information, a voice questioning message for determining whether to add a new user, and receiving a voice reply message returned from a user based on the questioning message; and outputting, in response to determining the voice reply message instructing to add the new user, a voice prompt message prompting the user to bind an account. The embodiment has improved the flexibility in the human-computer interaction.