With the wide development of the wavelet technology, the GEO satellite organized application system is faced with the problems aroused by the jam-packed bands and increasing interferences, which makes the frequency-spectrum monitoring and interference detecting duly necessary, and then, it is possible to minimize the influence by taking action accordingly. An implementation of the satellite frequency-spectrum monitor system based on LabVIEW is presented in this paper. The experimentation has proved that this system is able to monitor the satellite frequency-spectrum, as long as to detect the interference infused in the available satellite signal, which will improve detection and estimation ability of the satellite application system.