Method and system for obtaining television program expanded information of smart television

The invention discloses a method and system for obtaining television program expanded information of a smart television based on a mobile terminal. The method includes the steps that image information and text information obtained through the mobile terminal are sent to a server side; the server side returns the corresponding television program expanded information. The mobile terminal is connected with the smart television through a wireless network, then the mobile terminal obtains the image information and text information of television programs and sends the image information and text information to the server side, the server side returns the expanded television program expanded information to the mobile terminal, thus a user can obtain the television program expanded information according to the mobile terminal, information interaction of smart devices in a home network is achieved, and life intelligentization is achieved.