There are two traditional measurement techniques, one is the wire measurement method and the other is the triangulation method. When using the wire measurement method for cadastral control work, there is a high standard for the angle of the wire. When the terrain conditions at the measurement location are complex and the visibility effect is poor, the staff needs to adjust the length of the wire.

　　When using GPS measurement technology to carry out land surveying and mapping work, there is no need for inter visibility, which can break through the limitations of terrain, and the surveying and mapping work can be completed smoothly in any terrain environment, while ensuring the accuracy of the surveying and mapping results.

　　In addition, the structure of GPS technology is mesh like, with the characteristics of wide distribution, flexible usage, and high work efficiency, and has been widely applied worldwide.

　　In recent years, the development of PTK technology has also provided convenience for cadastral surveying and mapping work. In the actual measurement process, corresponding data can be monitored in real time without the need to set up control points, achieving dynamic measurement.

　　In summary, GPS measurement technology is conducive to the smooth implementation of land surveying and mapping work. The use of GPS technology in land surveying and mapping can provide corresponding technical support for land surveying and mapping work, reduce the labor intensity of workers, reduce surveying and mapping costs, and make the measured data results scientific and accurate.

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