It is a routine work for surveyors to reconnoitre the national land, which is not used for the public purpose, in order to gain information of its utilization. Up to date, the traditional methods of surveying are limited on using the tape to measure the distance, then to draw a sketch by hands for producing a map. As a result, it is not only the accuracy of mapping is questionable, but also repetition of creating a map. In this paper, the geomatics techniques are introduced and applied in surveying the national land, as well as compared with the traditional methods for the obtaining of the better performance and more accurate results.