In order to verify the influence for the positioning accuracy based on different initial value of pseudo-range, this paper based on long-term continuous measured data of the ground satellite navigation receiver, used RTK float-solution and RTK fixed-solution positioning algorithm, with initial values of primitive pseudo-range, carrier-phase smoothing pseudo-range and frequently resetting (fixed duration time of 100s) carrier-phase smoothing pseudo-range respectively. Statistic and analyze the positioning accuracy in all of the above case, then draw the corresponding conclusion, that is to say, RTK positioning solution by using carrier phase smoothing pseudo-range can achieve higher positioning accuracy and success rate compared with other two pseudo-range initial value selections.