Instant communication method with low transmission load based on XMPP protocol and system thereof

The invention provides an instant communication method with low transmission load on the basis of XMPP. The method includes the following steps: a cell-phone client terminal generates the XMPP message according to the instruction input by the user; the generated XMPP message is compressed and coded according to the content of a static dictionary; the coded message is sent through a gateway to an instant message server; the instant message server decodes the coded message according to the content of the static dictionary and obtains the instruction of the user through analysis; the message of reply is generated according to the user instruction, and is compressed according to the content of the static dictionary and sent to the cell-phone client terminal; the cell-phone client terminal obtains the message of reply through decoding and analysis according to the corresponding coding manner and executes the instruction; and the cell-phone client terminal displays the result of execution. The invention can reduce