The traditional measurement method of compensated micro manometer adopts manual measurement and human eye reading mode to achieve data acquisition. The uncertainty introduced by human eye reading error accounts for a large proportion in the overall uncertainty of the device. In this paper, a full-automatic compensation type micro manometer is developed. A high-definition camera is used to replace the human eye reading, and the software is used to make logical analysis of the collected pictures. At the same time, the functions of real-time liquid phase temperature measurement, field gravity acceleration measurement and atmospheric pressure measurement, which are not available in the traditional compensation type micro manometer, are added to effectively reduce the interference of each influence on the measurement results. The sliding table motor is used to control the displacement to further improve the measurement accuracy. The experimental results show that the automatic compensation type micro manometer developed in this paper has good accuracy and reliability, and has important technical promotion value.