Embodiments of the present disclosure provide a method, device and computer program product for backing up data. The method comprises obtaining a data attribute of specific data to be backed up from a client to a server, a resource utilization rate at the client, and a network condition between the client and the server. The method further comprises setting, based on the data attribute, the resource utilization rate and the network condition, a plurality of parameters for performing stream backup, wherein the plurality of parameters at least comprises a concurrent number of stream transmission and a concurrent number of data parsing. The method further comprises parsing, according to the set plurality of parameters, the specific data and backing up the specific data from the client to the server.