Disclosed in the present invention are a data transmission method and device, and a computer storage medium, the method comprising: a terminal transmits data and attribute information corresponding to the data to a network; and the network transmits data and attribute information corresponding to the data to the terminal, the attribute information corresponding to the data comprising at least one of the following: quality of service (QoS) stream information, protocol data unit (PDU) session information, network slice information, external network information for data transmission and identification information of the terminal.