Abstract: With the continuous advancement of spatial measurement technology, connections between re-gions worldwide have become increasingly close. To unify the results of different measurement coordinatesystems, it is necessary to establish a set of standards for mutual conversion of surveying and mapping da-ta. This paper first introduces the commonly used coordinate systems in China, including the Beijing1954 Coordinate System, the Xian 1980 Coordinate System, the 1984 World Geodetic System(WCS84), and the 2000 China Geodetic Coordinate System (CCCS2000). On this basis, through theo-retical analysis of the results of measurement coordinate transformation models at home and abroad, themethods for solving transformation parameters are explored. To facilitate practical use, aGraphical UserInterface (GUI) with multiple coordinate transformation functions (seven-parameter calculation, four-pa-rameter calculation, projection setting, seven-parameter setting, and four-parameter setting) is designedusing Matlab. Finally, the calculation results of the developed GUlare compared with those of the exist-ing Coord software, verifying the accuracy and reliability of the proposed measurement coordinate transfor-mation software.

Key words: coordinate system, coordinate conversion, Matlab , graphical user interface