On the basis of ultrasonic testing technology for testing service stress of concrete and with the aid of design principles of software engineering and object-oriented programming method, we combine Visual Basic and Fortran, the two kinds of programming languages, to develop a software system for processing the correlation of ultrasound and stress of concrete. This system has a rich graphic interactive environment and friendly interface which is easy to operate. So fast batch processing of great quantities of testing data can be realized and the testing efficiency is greatly improved.