The invention relates to an anti-virus system for Internet information security based on big data analysis, including a power supply and a certification module; the power supply is electrically connected with a UPS backup power supply through a conductor, and the power supply is electrically connected to an i5 processor input through a wire, The i5 processor is electrically connected with the operating system through a wire, the i5 processor is electrically connected with the big data antivirus system through a wire, the authentication module is electrically connected with the big data antivirus system output through a wire, and the i5 processor is electrically connected with the storage system input through a wire. The invention uses the antivirus module, the optimization module and the setting of the system slimming module, the antivirus module, the optimization module and the system slimming module as the three functions of the antivirus software through the electric parallel connection of wires, the antivirus module, the optimization module and the system slimming module, and can carry out multi-scheme response according to different situations of users.