In the process of construction,the elevation measurement work is very important and the workload is large.The traditional level measurement,triangular elevation measurement and GPS elevation measurement have their own deficiencies in operating environment,resource input and precision control.The paper indicates a method to obtain the elevation value by placing a handheld measuring device on the test point to accept the electromagnetic wave signal issued by the regional base station and calculate with spatial triangulation.The research and development of this technology can achieve the elevation measurement fast and accurate.