unit generates a meta instruction list and stores the meta instruction list into an information storage unit with regard to received graph grid information the graph grid editing module parses the meta instruction list obtains information library identifiers and a graph grid position identifier and updates control information the information storage module is the graph grid information library and is configured to store information instructions to be sent and received when the graph grid information is edited the graph grid editing module sequentially completes storage of the information instructions of the graph grids on the whole graph grid input interface and sends the information instructions as one piece of graph grid information however for receiving the graph grid information the information instructions are sequentially obtained and are delivered to the graph grid editing module for updating the control information referring to fig1 the present invention further provides an instant messaging system based on a dynamic graph grid the system includes an instant messaging server and the foregoing instant messaging client the instant messaging server is mainly responsible for providing storage and forwarding services of graph grid information and sending an instant message to the instant messaging client after login and the instant messaging client is configured to edit send receive notify and display a graph grid message in actual communication the instant messaging server is configured to receive the graph grid information sent by the instant messaging client store content of the graph grid information and then forward the information to another receiving instant messaging client the instant messaging server is configured with an information library the information library of the instant messaging server needs to be kept in synchronization with the information library of the instant messaging client so as to ensure accurate loading of the icon and the.