As the Russian government has increased investment and management in the Global Navigation Satellite System (GLONASS), the paper improves the acquisition and tracking algorithms of GLONASS receiver based on the primary study of GPS receiver. On the platform of MATLAB, the Fast Fourier Transform (FFT) acquisition of the GLONASS intermediate frequency (IF) signal has achieved by GLONASS signal simulator and PC. At the same time the delay lock loop (that is early-late loop) and coast phase lock loop is used to achieve the code tracking and carrier tracking and decode the navigation data. Just as the experimental results shown, GLONASS IF signal can be acquired and tracked by these algorithms which are suggested in this paper. And it has laid a solid foundation for the study of a complete GLONASS software receiver in the future.