The work aims to design a high-precision web press vibration test system to solve the problem of lateral vibration of the tape when the web press runs at a high speed. The lateral vibration of the tape was converted to distance measurement, and measured in the method of ultrasonic distance measurement. The analog-digital conversion was conducted with AD attached to MSP430 single chip microcomputer, to convert the analog quantity of ultrasonic probe output distance into the data amount output, display it on the LCD screen, and design PC software at the PC terminal. The measured data were displayed in real time through the serial communication. Through the experiment of the test system, the real-time vibration data was obtained. After the testing, the detection accuracy of the system for the vibration paper reached 0.1 mm. Through the method of ultrasonic distance measurement, a set of transverse vibration test system of web press tape is designed, which reduces the measurement error and improves the measurement accuracy.