The invention discloses a method for navigation positioning by use of digital frequency modulation broadcasting and belongs to the field of wireless navigation. The method comprises the following steps: realizing time synchronization among frequency modulation broadcast transmitters; the frequency modulation broadcast transmitters carrying wireless signals RF(t) whose navigation messages can be used for range finding; the frequency modulation broadcast receivers receiving wireless signals RF(t) broadcast by the multiple frequency modulation broadcast transmitters and parsing the navigation messages contained in the RF (t); and the frequency modulation broadcast transmitters using the navigation messages and the signals of themselves to perform positioning solution so as to obtain positions of themselves. Compared to the prior art, the method provided by the invention has the following advantages: the emission power of the frequency modulation broadcast transmitters is large, the indoor coverage capability is higher compared to space-based navigation and space-based navigation enhancement technologies; and the frequency modulation broadcasting bandwidth is small, and the receiver complexity is low, therefore, the cost is lower and the popularization is easier.