The invention provides a vacuum pressure sensor, and belongs to the technical field of pressure detection, for solving the problem of easily generated circuit faults when overlarge voltages or currents are generated in a circuit due to instability of the sensor circuit in a conventional vacuum pressure sensor. The vacuum pressure sensor comprises a housing internally provided with a cavity; a cover plate which is arranged above in the vertical direction of the cavity and can be dismounted from the housing; a pressure collecting pipe arranged below in the vertical direction of the cavity; a sensor which is arranged in the cavity of the housing, is internally provided with a pressure sensor circuit and is used for detecting the size of pressure; a connecting line used for connecting a wiring bench and the sensor; and the wiring bench which is provided with interfaces for input and output and is used for transmitting data detected by the sensor. The vacuum pressure sensor has the advantages of high stability, high-voltage and high-current resistance and high accuracy.