User authentication system suitable for multimedia transmission and service characteristics

The embodiment of the invention discloses a user authentication system suitable for multimedia transmission and service characteristics. The user authentication system comprises a client, a management end and an authentication server, wherein the client confirms the situation of video equipment through the detection of an acquisition end of the authentication server, immediately confirms connection after equipment detection is passed, acquires the picture information of the client through the video equipment of the client, and transmits the picture information to the acquisition end through a network; the acquisition end packages the acquired picture information and corresponding user account information, and transmits the packaged information to a data receiving end; the data receiving end automatically and randomly sends the acquired picture information to a plurality of queue servers, and the acquired picture information waits for being authenticated by the management end. According to the embodiment of the invention, a user no longer needs to use conventional password authentication and does not need to memorize various passwords, so that convenience in use is provided for the user; in addition, the situation that passwords of the user are stolen is avoided, so that the safety is guaranteed.