The utility model relates to a high-frequency signal broadband frequency mixing module, comprising a controlling unit, a frequency source unit, and a reception channel unit. The controlling unit outputs a frequency synthesizing control signal to the frequency source unit and outputs a channel control signal to the reception channel unit. The reception channel unit comprises a first reception frequency selection and conversion channel, a public intermediate frequency channel, and a second reception frequency selection and conversion channel, which are all connected with the output terminals of the frequency source unit. The output terminals of the first and second reception frequency selection and conversion channels are both connected with the input terminals of the public intermediate frequency channel. The high performance and miniaturization of the module are realized, and the module is advantaged by good production repeatability, good index consistency, and good reliability.