The invention discloses a false detection method of a satellite navigation signals. The false detection method of the satellite navigation signals can record the acquisition time of a current ephemeris by recording the updating time of a reference ephemeris, and calculates the time interval between the acquisition time of the current ephemeris and the updating time of the reference ephemeris so as to judge whether the time interval conforms to the updated frequency value of a broadcast ephemeris, thus achieving the false detection of the satellite navigation signals. The invention further discloses a satellite navigation positioning receiver. By means of the above-mentioned ways, anti-spoofing ability of the receiver is reinforced. In addition, the false detection method of the satellite navigation signals and the satellite navigation positioning receiver have the advantages that low cost is achieved, expansibility is strong and the like.