The invention discloses a network traffic ordering method and system, a mobile terminal and a server, and relates to the technical field of communication. The method comprises the following steps of: obtaining network traffic ordering information of a subscriber by the mobile terminal, wherein the network traffic ordering information comprises a subscriber identity and an ordered package type; judging whether the mobile terminal is in a networked state; when the mobile terminal is currently not in the networked state, generating a network traffic ordering short message according to the network traffic ordering information, and sending the network traffic ordering short message to the server; and ordering network traffic for the subscriber according to the network traffic ordering short message by the server. According to the invention, network traffic ordering is realized by means of obtaining the network traffic ordering information of the subscriber, further judging whether the mobile terminal is networked, if the mobile terminal is not networked, generating the network traffic ordering short message according to the network traffic ordering information, and sending the network traffic ordering short message to the server, wherein the server can help the subscriber to order network traffic after receiving the network traffic ordering short message, the network traffic ordering mode is not dependent on the network, and network traffic ordering can be realized even without the network.