The present invention discloses a microcirculation shock monitor enabling rapid and repeated positioning, a monitoring system and a monitoring method, belonging to the technical field of microcirculation shock monitoring. By the present invention, the same blood vessel in the same monitored area can be repeatedly positioned and monitored quickly within different periods of time, and blood vessel image data can be acquired, and then, on this basis, qualitative analysis or quantitative analysis is performed to obtain related monitored data, where quantitative analysis parameters comprise a high-speed blood flow intensity ratio R, a high-speed blood flow spreading rate S, a high-speed blood flow intensity duration T and a difference D of abnormal change in high-speed blood flow intensity of a monitored object, which facilitates studies and lays an accurate data foundation for rapidly indicating early and middle stage indications of infectious shock in a next step.
