Research on tectonic velocities (or plate tectonic) is a task that has been carried out regularly and continuously in Vietnam. The results of the study of tectonic velocities contribute to the possibility and extent of geological hazards as well as to the safe operation of works. GNSS-CORS technology is one of the technologies used in plate tectonic research. Built in 2016 and completed by the end of 2019, the VNGEONET network includes 65 stations distributed throughout Vietnam, serving many applications including plate tectonic shift. Based on measured data from August 2019 to March 2022, the authors determined displacement for 17 points in the territory of Vietnam. The experimental results show the similarity in magnitude and direction of displacement when compared with previously published results. Also, from the results of displacement determination, the use of long data series will contribute to improving the accuracy of displacement determination. Besides, the difference in the amount of displacement up to approximately 1 cm between points is something to pay attention to when modernizing the geodetic reference system in Vietnam.

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