The invention discloses a collecting and processing system of radio-frequency signals. The collecting and processing system of the radio-frequency signals comprises a master control computer module, a plurality of high-speed storage modules, an AD collection module, a fiber channel unit and a power management unit, wherein the input end of the AD collection module receives input signals, the high-speed storage modules, the AD collection module and the fiber channel unit are connected through an inter-board high-speed bus, the high-speed storage modules, the AD collection module and the fiber channel unit are also connected through a CAN bus, and the fiber channel unit is connected with the master control computer module through the PCIe and is provided with a data output port. The collecting and processing system of the radio-frequency signals is convenient to use, high in accuracy and high in reliability.