The invention discloses a vanadium dioxide-based sunshine intensity meter, which comprises an incident window, a cooling fin, a filter, a vanadium dioxide thin film, a digital measurement correction circuit, an output interface and a shell, wherein the incident window is arranged at the top end of the shell; the cooling fin is arranged below the incident window inside the shell; the filter is arranged below the cooling fin; the vanadium dioxide thin film is arranged below the filter; after sunshine enters from the incident window, light irradiates on the vanadium dioxide thin film sequentially via the cooling fin and the filter; after light-heat-resistance conversion is carried out on light via the vanadium dioxide thin film, output signals of the vanadium dioxide thin film are processed via the digital measurement correction circuit and are outputted via the output interface; and the vanadium dioxide thin film, the digital measurement correction circuit and the output interface are all arranged inside eth shell. The purposes of low cost, high sensitivity and high precision are achieved.