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Vibration has an important impact on the reliability of weapons and equipment. In this paper, one portable high precision vibration measuring instrument is developed base on the technology such as PC104 bus, high precision vibration sensor and power management in order to measure the vibration of warship equipment. The vibration measuring system is composed of this vibration instrument and one computer which has been installed the data analysis software. Application shows this vibration instrument has advantages of high resolution, low power consumption, simple installation methods, easy to carry and so on. This vibration measuring system has been used to sample the global sea vibration data of warship equipment, the sampling data has played an important role in the reliability analysis for active equipment and the reliability design for new equipment.