Information searching method and system based on voice recognition

The invention discloses an information searching method and system based on voice recognition. The information searching method comprises the following steps: front-end sensing equipment obtains user voice information and then transmits the user voice information to a front-end server, the front-end server identifies the user voice information and extracts user instruction information; the front-end server obtains page information presented to a user by the front-end sensing equipment at present, extracts keyword phrases from the page information to generate a semantic set, judges whether matching information associated with the user instruction information is present in the semantic set or not, and transmits an information presentation identifier to a service server when the matching information is present in the semantic set; the service server receives the information presentation identifier and then provides information contents corresponding to the information presentation identifier for the front-end sensing equipment, so that the front-end sensing equipment presents the information contents corresponding to the information presentation identifier for the user. According to the invention, the visual scene combined automatic language search and automatic control are achieved, the user experience is improved.