The invention provides a remote-transmission digital pressure measuring device. One electrode plate in a pressure measuring capacitor is mounted at the end of a pressure measuring Bourdon tube connected with a measured pressure source, and a circuit board fixedly arranged on a support of the measuring device form a pressure measuring capacitor Cx associated with the external measured pressure; and an oscillator, the oscillation frequency of which is determined by the Cx converts the change of the measured pressure into digital frequency change signals. Through the design of digital conversion of the pressure measurement data, measurement accuracy is improved to 0.5% and above under the condition of non-contact non-pointer pressure measurement, and remote both-way digital communication and transmission is realized conveniently; through digital filtering of pressure measurement value, instability influence of mechanical vibration and the like on pressure measurement can be filtered out conveniently; and the remote-transmission digital pressure measuring device is simple in structure, low in cost, high in precision and high in reliability, and can be widely applied to the occasions of pressure measurement and remote digital management with the non-polarity two-wire system both-way communication power supply integrated interface design being combined.