Various national constructions rely on the high precision national fundamental control measurement system as base. The national fundamental measurements include the earth control net, height control net, and gravity control net etc. three major measurement work. The scope includes land and sea. The Ministry of Interior is the govern organization for national measurement. For sound national fundamental control measurement system, the Ministry of Interior planning covers both the continuity and development of a series of fundamental control measurement plan. Starting 1993, the use of globe positioning system to carry out Taiwan Fijian area fundamental control measurement program, the establishment and application program for national fundamental measurement control points, and national fundamental measurement development program were carried out continuously. New instruments and new technologies are introduced continuously to establish earth control net (satellite control point system), height control net, gravity control net and sea fundamental may measurement. It continues to maintain the established fundamental control measurement system to provide complete, uniform, and high precision fundamental control measurement system for use by every one.

        To establish complete, uniform, and high precision satellite control point system, the Ministry of Interior, from 1993 to 1998, carried out the use of globe positioning system to carry out Taiwan Fijian area fundamental control measurement program. It established 8 satellite tracking stations in Taiwan and Fuji an area, Yang Ming San, Bei Gung, Kung Tin, Tai Ma Li, Fang Lin, Kin Men, Ma Tsu, and Dong Sa. It also measured 722 satellite control points.

        To reestablish high precision height control point system, the Ministry of Interior provides modern three-dimensional control data. From 1999 to 2002, it carried out the the establishment and application program for national fundamental measurement control points. In four years, for four years, 2065 class 1 base level points survey work is completed. (Total base level route length 4000 km). To achieve the goal that the established 2065 class 1 base level points are full control points, in addition to the base level measurement for the above-mentioned class 1 base level points, the Ministry of Interior also carried out satellite positioning measurement and gravity measurement, so that the established base level points are with both high precision height and horizontal coordinates. This increases the number and density of surface control points greatly. Since the base level points have normal height and ellipse height two different height systems height values. These two different height systems were integrated, with relevant gravity measurement data; the earth topology model is established for use by every one.

        From 2003 to 2007, the Ministry of Interior will carry out the national fundamental measurement development program, including territorial sea and adjacent sea area fundamental map measurement, establishing Taiwan area land and sea gravity control net, establishing and maintaining height control system (include off shore island area height control point system), and maintaining satellite control point system, etc. four major projects. This is to establish land and sea consistent, modern and complete fundamental control measurement system to be used by government organizations of all level, improve private investment environment and increase national competitive capability.

        To carry out the above-mentioned fundamental measurement business, the satellite measurement center is established as project base organization under the land policy department.
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