The present invention discloses a device for testing the dynamic characteristics of a physiological pressure sensor. The device comprises a pressure chamber, a physiological pressure sensor, a standard pressure sensor, a static pressure loading device and a liquid pumping and injection device; the physiological pressure sensor and the standard pressure sensor are both connected with a signal conditioning device; the signal conditioning device is connected with a data acquisition card; the signal conditioning device, the data acquisition card, the static pressure loading device and the liquid pumping and injection device are all connected with a computer; and one end of the pressure chamber is connected with an elastic diaphragm A and an electromagnetic vibration device A, and the other end of the pressure chamber is connected with an elastic diaphragm B and an electromagnetic vibration device B. The dynamic characteristic testing device of the invention has the advantages of simple and reliable structure and easiness in realization. With the device and method of the invention adopted, the measurement of the dynamic characteristics of the physiological pressure sensor under a fixed frequency can be realized, and the measurement of the dynamic characteristics of the physiological pressure sensor in a whole frequency range can be also realized in a frequency sweep manner.