Real-time identifying method of interaction type network television user

The method includes authentication procedure of turning on TV set, and content service procedure. The authentication procedure of turning on TV set includes steps: building connection between electronic navigation guide server and authentication authorization charging server; network set-top box (STB) sends a request of authenticating device ID to the charging server; after authentication of device ID, STB sends a request of authorizing user to the charging server; the charging server sends response of authorizing user to carry out authorization; building connection between the charging server and video server; sending request of authorized playing to the charging server; content service procedure includes steps: STB sends out program request; after obtaining playing authorization, user sends request for playing content. The invention can carry out authentication in realtime. Authentication for both parties, and MD5 cryptographic algorithm are adopted to guarantee security of system.