Abstract: Existing traverse measurement method of traditional plane map has problem of large measurement error ，low efficiency and limited application range，so a land mobile monitoring and measuring system based on GPS technology was designed.Framework of system and design scheme of functional modules and abnormal points and drift errors of GPS land measurement and calculation method were introduced and optimized.TQ210 Android open platform ARM Coretex-M3 architecture and Microsoft Visual C++ design were used as technical support to complete design of vehicle terminal，handheld terminal and host computer software.Vehicle system and handheld terminal integrated GPS receiving module and SIM900A SMS module，which could obtain and transmit GPS land measurement information in real time.PC software completes video decoding and real-time map display of land survey data.It could provide effective support for real-time positioning，automation and precision monitoring of land surveying targets.