This paper aims to discuss the GAMIT /GLOBK-based method for high-precision pipeline engineering control network solution. The process and result of baseline solution, adjustment and precision evaluation are discussed. Base line of 11 long time GPS static observations were processed at the interval of 40~60 km, combined with observation data of 7 IGS reference stations. The loosely constrained algorithm and Kalman filtering were adopted to calculate the accurate coordinates of the 11 points, which were soon afterward used as control points to conduct an adjustment to the entire network. The accuracy analysis results show that the accuracy of Reference points processed by GAMIT/GLOBK can reach millimeter level, and the accuracy of the control network can even be more precise than limit requirements of C class GPS control network. The high-precision solution of pipeline control network by GAMIT/GLOBK can be used as effective technical means in future projects.