Disclosed are a method and a device for browsing network data, and a storage medium, and the method is operable on a device for browsing network data and includes: requesting for acquisition of network data, which includes thumbnail media data used for the thumbnail display of original media data; acquiring the thumbnail media data and data amount information of the original media data corresponding to the thumbnail media data; and displaying the thumbnail media data and the data amount information. By the disclosure, a user of an Internet terminal may obtain the relevant information of the original media data, so that unnecessary data acquiring operations by the user may be reduced, the waste of network traffic is reduced and the standby time of the Internet terminal is prolonged.