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UCAM-70A strain measurement system is widely used in the field of structural measurement in China, however, its measurement efficiency and post-processing efficiency are extremely low, because of the lack of a suitable upper computer measurement and control software. It is necessary to solve this technical problem. In this paper, through the study of UCAM-70A technical manual and serial port detection means, master its serial port communication protocol, using Visual Basic programming tools combined with third-party table controls and database components, A upper computer measurement and control software based on PC computer is developed. It realizes convenient parameter setting, efficient measurement and post-processing functions, greatly improved the measurement and data processing efficiency and reliability. By comparing and studying the communication protocols of UCAM-60B and other UCAM series strain gauges, After local modification in communication, this software can be widely used in UCAM series strain gauges. The design method and software have the valve of reference and popularization in the field of structure monitoring.