A device for identity verification comprises a processor configured to: determine whether a currently playing video contains sensitive content (101); if the currently playing video contains sensitive content, acquire a head image of a user currently viewing the video (102); perform facial recognition on the head image (103), and determine whether the user comprises a sensitive user not allowed to view the sensitive content (104); and if the user comprises a sensitive user not allowed to view the sensitive content, stop playing the video (105). The device can identify the identification of a user viewing video content, thereby reducing harms to minors caused by violent, murderous and pornographic content.