In order to improve the ease of sharing of remote medical images and improve the cloud data-based image data transmission efficiency, the present invention provides a distributed monitoring method for medical cloud data, in which the remote medical images are sent to a monitoring end using a smart mobile device. The method comprises the steps of: (1) establishing a data link between a smart mobile device and a cloud server; (2) collecting medical data to be monitored; and (3) sending the medical data by the smart mobile device. The method provided by the present invention can dynamically adjust the transmission of various frames of image data according to the cache of a smart mobile device and the surplus capacity of fixed storage space (i.e. RAM and ROM), thereby improving the transmission speed and transmission efficiency of medical data including medical image data in a cloud network, and thus improving the distributed monitoring efficiency of medical cloud data.